Login
Login

List of Thai monarchs

{{Short description|List of people who have ruled as monarch of Siam or Thailand}}

{{Infobox monarchy

| royal_title = King

| realm = Thailand

| native_name = {{langn|th|พระมหากษัตริย์ไทย}}

| coatofarms = King's Standard of Thailand.svg{{!}}border

| coatofarmscaption = Royal Standard (since 1910)

| image = King Rama X official.png

| incumbent = Vajiralongkorn (Rama X)

| incumbentsince = 13 October 2016

| his/her = His

| heir_presumptive = Dipangkorn Rasmijoti

| first_monarch = Si Inthrathit

| formation = {{start date and age|1238|||df=yes}}

| residence = {{ubl|Grand Palace (ceremonial)|Dusit Palace (residential)}}

| website = {{oweb|royaloffice.th/en/home/|royaloffice.th}}

}}

The succession of Thai monarchs began with Si Inthrathit at the establishment of the first Thai kingdom in 1238. With brief interruptions, 55 monarchs have ruled over four successive kingdoms, the current monarch being Vajiralongkorn (Rama X) of the Chakri dynasty.

Titles and naming conventions

{{further|Thai royal ranks and titles}}

In the Sukhothai Kingdom, the monarch used the title Pho Khun ({{langx|th|พ่อขุน}}), and monarchs who reigned over the period of decline after Ram Khamhaeng the Great used the title Phraya ({{langx|th|พญา}}).

In the Ayutthaya Kingdom and afterward, thanandon, the system of Thai royal titles, determines the style of the monarch's full regnal name (which includes the title), consisting of two interconnected parts:

  • The first part is the title Phra Bat Somdet Phra Chao Yu Hua ({{langx|th|พระบาทสมเด็จพระเจ้าอยู่หัว}}, 'His Majesty the King'). The title is split by the regnal name, written between Phra and Chao. If the monarch was not formally crowned, Phra Bat is omitted. If the monarch ruled as a tributary or was usurped, Somdet may be omitted.
  • Sometimes, Chao Yu Hua is fully omitted. Other times, only Yu Hua is omitted, in which case Chao follows the remaining components of the title and precedes the regnal name.
  • The second part is the regnal name, of which only a portion may be used to commonly refer to the monarch. It may differ from their birth name, their name as uparaja (viceroy), or their posthumous name and/or historical style. This list refers to monarchs by the names most often used by traditional historians.{{Cite journal |last=Jones |first=Robert B. |date=June 1971 |title=Thai titles and ranks; including a translation of Traditions of royal lineage in Siam by King Chulalongkorn |url=https://hdl.handle.net/1813/57549 |journal=Southeast Asia Program Data Papers Series |hdl=1813/57549 |via=Cornell University}}

Western nations referred to the monarch as the "King of Siam" ({{langx|la|Rex Siamensium}}), regardless of Thai titles, since the initiation of relations in the 16th century. Mongkut (Rama IV) was the first monarch to adopt the title when the name Siam was first used in an international treaty.{{cite web|title="สยาม" ถูกใช้เรียกชื่อประเทศเป็นทางการสมัยรัชกาลที่ 4|url=https://www.silpa-mag.com/club/art-and-culture/article_10496|publisher=ศิลปวัฒนธรรม|date=6 July 2017|access-date=10 August 2017|language=th}} When the kingdom's name was changed to Thailand, the monarch's Western title changed accordingly.{{Cite web |title=Siam definition and meaning |url=https://www.collinsdictionary.com/dictionary/english/siam |access-date=11 January 2020 |website=Collins English Dictionary}}

Sukhothai Kingdom (1238–1438)

{{further|Sukhothai Kingdom}}

File:Administrative Division of Sukhothai Kingdom in 1293.jpg

Tai peoples migrated into mainland Southeast Asia in the 8th–10th centuries.[http://www.manusya.journals.chula.ac.th/files/essay/Pittayawat%2047-68.pdf Pittayaporn, Pittayawat (2014). Layers of Chinese loanwords in Proto-Southwestern Tai as Evidence for the Dating of the Spread of Southwestern Tai] {{webarchive|url=https://web.archive.org/web/20150627063518/http://www.manusya.journals.chula.ac.th/files/essay/Pittayawat%2047-68.pdf |date=27 June 2015 }}. MANUSYA: Journal of Humanities, Special Issue No 20: 47–64. In the years after, Northern Thai groups established mueang that evolved into larger states, such as Ngoenyang.Probably The Chiang Mai Chronicle, {{ISBN|974-7100-62-2}}Wyatt, D. K. Thailand, A Short History, p. 35–38, Bangkok 2003 However, it was not until the decline of the Khmer Empire in the 13th century that a Central Thai kingdom politically and culturally related to modern Thailand was first founded.

=Phra Ruang dynasty (1238–1438)=

The Phra Ruang dynasty was the only royal lineage that ruled over the Sukhothai Kingdom, the first Central Thai state. Established by Si Inthrathit in 1238, who declared independence from the Khmer Empire, the dynasty laid the foundations for Thai society.{{cite journal

| last1 = Cœdès

| first1 = G.

| author-link1 = Georges Coedès

|year= 1921

|title= The Origins of the Sukhodaya Dynasty

|journal= Journal of the Siam Society

|volume= 14 |issue= 1|pages=

|publisher= Siam Heritage Trust |doi=

|url= http://www.siamese-heritage.org/jsspdf/1921/JSS_014_1b_Coedes_OriginsOfSukhodayaDynasty.pdf

|access-date= March 17, 2013

|quote= (1) The translation of this paper, which has been read at a joint session of the Royal Asiatic Society of Great Britain and Ireland, Société Asiatique, and American Oriental Society, and published in the Journal asiatique (April–June 1920), is the work of Mr. J. Crosby, to whom the author begs to tend his heartfelt thanks.

}} Under Ram Khamhaeng the Great, the initial Thai script was invented and Therāvada Buddhism was established as the state religion.{{cite book|last= Cœdès |first= George|author-link= George Cœdès|editor= Walter F. Vella|others= trans. Susan Brown Cowing|title= The Indianized States of Southeast Asia|year= 1968|publisher= University of Hawaii Press|isbn= 978-0-8248-0368-1}}{{rp|197}}Chakrabongse, C., 1960, Lords of Life, London: Alvin Redman Limited{{rp|25}}

The dynasty is named after the Traiphum Phra Ruang, a Buddhist cosmology book written by Maha Thammaracha I. During his reign, the kingdom was invaded by Ayutthaya, a neighboring Thai state, becoming a tributary during the reign of Maha Thammaracha II.{{rp|222}}

In the Sukhothai Kingdom, the monarch ruled from the city of Sukhothai, while the heir presumptive would occasionally be named uparaja, or viceroy, and ruled in Si Satchanalai. In 1438, Ayutthaya annexed Sukhothai at the death of Maha Thammaracha IV when Borommarachathirat II of Ayutthaya named his son Prince Ramesuan uparaja. In Ayutthaya, the tradition would evolve into the Front Palace system.{{Cite book |author=David K. Wyatt |title=Thailand: A Short History |publisher=Silkworm Books |year=2004 |edition=2nd |page=59}}

class="wikitable" style="text-align:center; width:100%;"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=15% | Personal name

! style="background-color:#F0DC82" width=9% | Reign

! style="background-color:#F0DC82" width=20% | Succession

! style="background-color:#F0DC82" width=30% | Life details

align="center" |1

| 100px

| Kamonteng Ansi Inthrabodinthrathit
กมรเตงอัญศรีอินทรบดินทราทิตย์

| Pho Khun Si Inthrathit
พ่อขุนศรีอินทราทิตย์
or
Pho Khun Bang Klang Hao
พ่อขุนบางกลางหาว

| 1238 – 1270
({{Age in years, months, and days|1238|1|1|1270|1|1}})

| First King of Sukhothai

| 1188 – 1270
(aged 82)

Ruled locally in the Khmer Empire as Bang Klang Hao. His rebellion led to the establishment of Sukhothai, the first Central Thai kingdom
align="center" |2

| 100px

| colspan="2" |Pho Khun Ban Mueang
พ่อขุนบานเมือง

| 1270 – 1279
({{Age in years, months and days|1270|1|1|1279|1|1}})

|Son of Si Inthrathit

| {{Circa}} 1237 – 1279
(aged approx. 42)

Namesake for birth name of Maha Thammaracha IVPrincess Maha Chakri Sirindhorn Foundation, 2011{{Broken anchor|date=2025-04-22|bot=User:Cewbot/log/20201008/configuration|target_link=#pf-1|reason= }}: 43.
align="center" |3

| 100px

| Phrabat Kamonteng Ansi Rammarat
พระบาทกมรเตงอัญศรีรามราช

| Pho Khun Ram Khamhaeng the Great
พ่อขุนรามคำแหงมหาราช

| 1279 – 1298
({{Age in years, months and days|1279|1|1|1298|1|1}})

| Younger brother of Ban Mueang; named uparaja

| {{Circa}} 1237/1247 – 1298
(aged approx. 51/61)

Oversaw the height of Sukhothai prosperity, the development of the Thai script, and the propagation of Theravada Buddhism within Sukhothai
align="center" |4

| 100px

| colspan="2" |Phraya Loe Thai
พระยาเลอไทย

| 1298 – 1323
({{Age in years, months and days|1298|1|1|1323|1|1}})

| Son of Ram Khamhaeng

| {{Circa}} 1262 – 1323
(aged approx. 61)

Brother of Burmese queen consort May Hnin Thwe-Da.{{cite book | last=Pan Hla | first=Nai | title=Razadarit Ayedawbon | language=Burmese | year=1968 | edition=8th printing, 2005 | location=Yangon | publisher=Armanthit Sarpay}} His reign saw the decline of Sukhothai, as regions conquered by Ram Khamhaeng broke away
align="center" |5

| 100px

| colspan="2" |Phraya Ngua Nam Thum
พระยางั่วนำถุม

| 1323 – 1347
({{Age in years, months and days|1323|1|1|1347|1|1}})

| Son of Ban Mueang and first cousin of Loe Thai

| {{Circa}} 1266 – 1347
(aged approx. 81)

Brother of Burmese queen consort May Hnin Htapi.Pan Hla 2005: 38 Origin of his name is disputedSukhothai Studies Encyclopedia Commission, 1996{{Broken anchor|date=2025-04-22|bot=User:Cewbot/log/20201008/configuration|target_link=#stou-1|reason= }}: 41.
align="center" |6

| 100px

| Phra Maha Thammaracha I
พระมหาธรรมราชาที่ ๑

| Phraya Li Thai
พระยาลิไทย

| 1347 – 1368
({{Age in years, months and days|1347|1|1|1368|1|1}})

| Son of Loe Thai and first cousin once removed of Ngua Nam Thum; named uparaja as Li Thai in 1340/41

| {{Circa}} 1300 – 1368
(aged approx. 68)

Known for his devotion to Buddhist philosophy and writing. During his reign, Ayutthaya began to invade into Sukhothai
colspan="7" style="background-color:#FFC0CB" |1378: Sukhothai became a tributary state of the Ayutthaya Kingdom.
align="center" |7

| 100px

| Phra Maha Thammaracha II
พระมหาธรรมราชาที่ ๒

| Phraya Lue Thai
พระยาลือไทย

| 1368 – {{Circa}} 1400
(approx. {{Age in years, months and days|1368|1|1|1400|1|1}})

| Son of Maha Thammaracha I

| {{Circa}} 1358 – 1400
(aged approx. 42)

Born Lue Thai. Under his rule, the dynasty continued under tributary status
align="center" |8

| 100px

| Phra Maha Thammaracha III
พระมหาธรรมราชาที่ ๓

| Phraya Sai Lue Thai
พระยาไสลือไทย

| {{Circa}} 1400 – 1419
(approx. {{Age in years, months and days|1400|1|1|1419|1|1}})

| Son of Maha Thammaracha II

| {{Circa}} 1380 – 1419
(aged approx. 39)

Born Sai Lue Thai
align="center" |9

| 100px

| Phra Maha Thammaracha IV
พระมหาธรรมราชาที่ ๔

| Phraya Borommapan
พระยาบรมปาล

| 1419 – 1438
({{Age in years, months and days|1419|1|1|1438|1|1}})

| Son of Maha Thammaracha III

| {{Circa}} 1401 – 1438
(aged approx. 37)

Born Borommapan. Won the throne against his brother after the intervention of King Intharachathirat of Ayutthaya.{{Cite book |author=Patit Paban Mishra |title=The History of Thailand |url=https://archive.org/details/historythailandt00mish |url-access=limited |publisher=Greenwood |year=2010 |page=[https://archive.org/details/historythailandt00mish/page/n61 39]}} Upon his death, King Borommarachathirat II of Ayutthaya installed his son as uparaja, ending the Phra Ruang succession
colspan="7" style="background-color:#FFC0CB" |1438: Unification with Ayutthaya Kingdom ended Sukhothai autonomy.

Ayutthaya Kingdom (1351–1767)

{{further|Ayutthaya Kingdom}}

File:Administrative Division of Ayutthaya Kingdom in 1468.jpg

The Ayutthaya Kingdom was a result of a unification between two states: the Kingdom of Suphannaphum (Suphanburi) and the Kingdom of Lavo. Though the Kingdom of Lavo was originally a Mon kingdom, the migration of the Tai peoples into the Chao Phraya basin replaced the original Mons, consequently becoming the governors of these regions. This resulted in the capital moving from Lavapura (Lopburi) and Suphannaphum (Suphanburi) to Ayodhya (Old Ayutthaya), a new capital.{{Cite web |title=History of Ayutthaya - Temples & Ruins - Wat Ayodhya |url=https://www.ayutthaya-history.com/Temples_Ruins_Ayodhya.html |access-date=2024-07-06 |website=www.ayutthaya-history.com}} Later on, the Kingdom of Nakhon si Thammarat came under the influence of Ayutthaya after seceding from Sukhothai, and Sukhothai losing influence and coming under Ayutthayan influence.

This conflict would last long into the history of Ayutthaya Kingdom, where families from the four major regional kingdoms vie over the throne of the kingdom. These kingdoms are: Kingdom of Nakhon Si Thammarat, Kingdom of Sukhothai, Kingdom of Lavo, and Kingdom of Suphannaphum. The Kingdom of Sukhothai was integrated into the Kingdom of Ayutthaya along with its noble families.{{Cite book |url=http://archive.org/details/royalchronicleso0000unse |title=The royal chronicles of Ayutthaya |date=2000 |publisher=Bangkok : The Siam Society |others=Internet Archive |isbn=978-974-8298-48-1}}

=Pre-Ayutthaya era (Ayodhya period)=

class="wikitable" style="text-align:center; width:100%;"

! colspan="4" |Ayodhya Governor Seat

Regnal name

! Reign from

! Reign until

! Notes

Phra Narai
พระนารายณ์

| 1082

| 1087

| {{blist|Both ruler of the Ayodhya seat and the Kingdom of Lavo}}

colspan="4" style="background: #E0FFFF;" | Vacancy of the governor seat; the line split into the Ayodhya seat and the Lavapura (Lavo) seat
Phra Chao Luang
พระเจ้าหลวง

| 1089

| 1111

|

Sai Nam Peung
สายน้ำผึ้ง

| 1165

| 1205

|

Phra Chao Thammikaraja
พระเจ้าธรรมิกราชา

| 1205

| 1253

| {{blist|Full regnal name according to the Miscellaneous Laws (Phra Aiyakan Betset) under the parent law, Three Seals Law, enacted in 1225 AD (BE 1768): Phrabat Somdet Phra Ramathibodi Sriwisutthiburusodom Borommachakkraphat Thammikaraja Dechochaithepadithep Triphuwanathibet Barombophit Phra Phutthi Chao Yu Hua ({{langx|th|พระบาทสมเดจ์พระรามาธิบดีศรีวิสุทธิบุรุโสดมบรมจักรพรรดิธรรมิกกราชเดโชไชเทพาดิเทพตรีภูวนาธิเบศ บรมบพิตรพระพุทธิเจ้าอยู่หัว}})The Fine Arts Department of Thailand. (1978). Rūang Kotmāi trā 3 dūang [Three Seals Law] เรื่องกฎหมายตราสามดวง (in Thai). Bangkok: The Fine Arts Department of Thailand. p. 414. {{OCLC|934462978}}}}

Phra Chao Uthong
พระเจ้าอู่ทอง

| 1253

| 1289

|

Phra Chao Chaisen
พระเจ้าชัยเสน

| 1289

| 1301

|

Phra Chao Suwanracha
พระเจ้าสุวรรณราชา

| 1301

| 1310

|

Phra Chao Thammaracha
พระเจ้าธรรมราชา

| 1310

| 1344

|

Phra Boromracha
พระบรมราชา

| 1344

| 1351

|

Phra Chao Uthong
พระเจ้าอู่ทอง

| 1344

| 1351

| {{blist|After King Phraek Si Racha of the Lavapura seat passed, the throne passed through his daughter Son Sai, onto her son, the governor of Ayodhya: Phra Chao Uthong{{Cite web |title=clra53_0235 |url=http://www.car.chula.ac.th/rarebook/book2/clra53_0235/mobile/index.html |access-date=2024-07-06 |website=www.car.chula.ac.th}}}}

colspan="4" style="background: #E0FFFF;" |Governorship of Lavo merged with the Ayutthaya governorship when Uthong inherited Lavo
Lavo merged into the Ayutthayan crown in 1388 under King Ramesuan

=1st Uthong dynasty (1351–1370)=

class="wikitable" style="text-align:center; width:100%;"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

align="center" |1

| 100px

| Somdet Phra Ramathibodi I
สมเด็จพระรามาธิบดีที่ ๑

| Phra Chao Uthong
พระเจ้าอู่ทอง

| 3 April 1314

| 4 March 1351{{Cite book|last1=Baker|first1=Chris|url=https://books.google.com/books?id=GHiuDgAAQBAJ|title=A History of Ayutthaya: Siam in the Early Modern World|last2=Phongpaichit|first2=Pasuk|publisher=Cambridge University Press|pages=43|year=2017|isbn=978-1-316-64113-2|location=}}

| colspan="2" |1369 (18 years)
(63 years old)

| {{blist|First king of Ayutthaya}}

align="center" |2

| |100px

| colspan="2" |Somdet Phra Ramesuan
สมเด็จพระราเมศวร

| 1339

| 1369

| 1370 (less than one year)
(abdicated)

| 1395
(56 years old)

| {{blist|Son of Uthong}}

=1st Suphannaphum dynasty (1370–1388)=

{{further|Suphannabhum}}

As previously mentioned, the kingdom of Ayutthaya was the result of the unification between two federations: Lavo and Suphannaphum. The ruling dynasty of Lavo gave rise to the Uthong Dynasty, in which the Suphannaphum dynasty came from the Suphannaphum federation. This federation held significant influence within the kingdom leading them to take control of the throne in 1310.

class="wikitable" style="text-align:center; width:100%;"

! colspan="4" |Suphannaphum Governor Seat

Regnal name

! Reign from

! Reign until

! Notes

Uthong I

| colspan="2" |Unknown

| {{blist|Suphan Buri was a tributary state of the Sukhothai Kingdom (1283–1298)|Son of Chaiyasiri|Younger brother of Phanom Thalesri, King of Phip Phli}}

Uthong II

| Unknown

| 1335

| {{blist|Son of Uthong I}}

Uthong III

| 1335

| 1351

| {{blist|Son or son-in-law of Uthong II|Possible father of Pha Ngua}}

Pha Ngua

| 1351

| 1370

| {{blist|Foundation of the Ayutthaya Kingdom (1351)|Later became King Borommarachathirat I}}

colspan="4" style="background: #E0FFFF;" |Pha Ngua became King Borommarachathirat I
Sri Thephahurat

| 1370

| 1374

| {{blist|Younger brother or son of Borommarachathirat I|Father or relative of Nakhon In|Born into a Suphannaphum father and a Phra Ruang mother}}

Nakhon In

| 1374

| 1408

| {{blist|Also the crown prince of Xiānluó|Later became King Intharachathirat}}

colspan="4" style="background: #E0FFFF;" |Nakhon In became King Intharachathirat
Ai Phaya

| 1408

| 1424

| {{blist|Son of Intharachathirat|Older brother of Borommarachathirat II}}

colspan="4" style="background: #E0FFFF;" |Suphannaphum merged into the Ayutthayan crown

class="wikitable" style="text-align:center; width:100%;"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

align="center" |3

| 100px

| Somdet Phra Borommarachathirat I
สมเด็จพระบรมราชาธิราชที่ ๑

| Khun Luang Pha Ngua
ขุนหลวงพะงั่ว

| 1310

| 1370

| colspan="2" |1388 (18 years)
(78 years old)

| {{blist|Usurper, former lord of Suphanburi|Husband of Uthong's older sister|Possible son of Uthong III, making him a great-great-great-grandson of Phrom}}

align="center" |4

| 100px

| colspan="2" |Somdet Phra Chao Thong Lan
สมเด็จพระเจ้าทองลัน

| 1374

| colspan="3" |1388 (7 days)
(14 years old)

| {{blist|Son of Borommarachathirat I}}

=2nd Uthong dynasty (1388–1409)=

class="wikitable" style="text-align:center; width:100%;"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

align="center" |(2)

| 100px

| colspan="2" |Somdet Phra Ramesuan
สมเด็จพระราเมศวร

| 1339

| 1388

| colspan="2" |1395 (7 years)
(56 years old)

| {{blist|Former king reclaiming the throne|Son of Uthong}}

align="center" |5

| 100px

| Somdet Phra Ramrachathirat
สมเด็จพระรามราชาธิราช

| Somdet Phraya Ram Chao
สมเด็จพญารามเจ้า

| 1356

| 1395

| 1409 (14 years)
(usurped)

| ?

| {{blist|Son of Ramesuan}}

=2nd Suphannaphum dynasty (1409–1569)=

class="wikitable" style="text-align:center; width:100%;"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

! style="background-color:#F0DC82" width=1% | Viceroy

align="center" |6

| 100px

| Somdet Phra Nakhon Intharachathirat
สมเด็จพระนครอินทราชาธิราช

| Chao Nakhon In
เจ้านครอินทร์

| 1359

| 1409

| colspan="2" |1424 (15 years)
(65 years old)

| colspan="2" |{{blist|Former lord of Suphanburi, offered crown|Nephew or son of Borommarachathirat I}}

align="center" |7

| 100px

| Somdet Phra Borommarachathirat II
สมเด็จพระบรมราชาธิราชที่ ๒

| Chao Sam Phraya
เจ้าสามพระยา

| 1386

| 1424

| colspan="2" |1448 (24 years)
(62 years old)

| {{blist|Son of Intharachathirat}}

| 100px
Ramesuan
(son)

align="center" |8

| 100px

| Somdet Phra Borommatrailokkanat
สมเด็จพระบรมไตรโลกนาถ

| Phra Ramesuan (II)
พระราเมศวร (ที่๒)

| 1431

| 1448

| colspan="2" |1488 (40 years)
(57 years old)

| {{blist|Son of Borommarachathirat II}}

| 100px
Chettha
(son)

colspan="10" style="background: #E0FFFF;" | Administrative reform Chatusadom, 1454
align="center" |9

| 100px

| Somdet Phra Borommarachathirat III
สมเด็จพระบรมราชาธิราชที่ ๓

| Phra Borommaracha
พระบรมราชา

| 1462

| 1488

| colspan="2" |1491 (3 years)
(29 years old)

| {{blist|Son of Borommatrailokkanat}}

| 100px
Chettha
(brother)

align="center" |10

| 100px

| Somdet Phra Ramathibodi II
สมเด็จพระรามาธิบดีที่ ๒

| Phra Chetthathirat
พระเชษฐาธิราช

| 1473

| 1491

| colspan="2" |10 October 1529 (38 years)
(56 years old)

| {{blist|Younger brother of Borommarachathirat III|Son of Borommatrailokkanat}}

| 100px
Athittayawong
(son)

align="center" |11

| 100px

| Somdet Phra Borommarachathirat IV
สมเด็จพระบรมราชาธิราชที่ ๔

| Phra Athittayawong
พระอาทิตยวงศ์

| 1488

| 10 October 1529

| colspan="2" |1533 (4 years)
(45 years old)

| {{blist|Son of Ramathibodi II}}

| 100px
Chairacha
(brother)

align="center" |12

| 100px

| colspan="2" |Somdet Phra Ratsadathirat
สมเด็จพระรัษฎาธิราช

| 1529

| colspan="3" |1533 (5 months)
(4 years old)

| {{blist|Son of Borommarachathirat IV|Child king, reigned under regency}}

| rowspan="3" |Vacant

align="center" |13

| 100px

| colspan="2" |Somdet Phra Chairachathirat
สมเด็จพระไชยราชาธิราช

| 1499

| 1533

| colspan="2" |1546 (13 years)
(47 years old)

| {{blist|Usurper, uncle of Ratsadathirat|Younger brother of Borommarachathirat IV|Son of Ramathibodi II}}

align="center" |14

| File:King Kaeofa.jpg

| colspan="2" |Somdet Phra Yotfa
สมเด็จพระยอดฟ้า

| 1535

| 1546

| 1548 (2 years)
(usurped)

| 10 June 1548
(13 years old)

| {{blist|Son of Chairachathirat}}

align="center" |—

| 100px

| Khun Worawongsathirat
ขุนวรวงศาธิราช

| Bunsi
บุญศรี

| 1503

| before 10 June 1548

| colspan="2" |11 November 1548 – 5 January 1549 (154 days)
(45 years old)

| {{blist|Usurper, not accepted as legitimate by some historians}}

| 100px
Chan
(brother)

rowspan="2" align="center" |15

| rowspan="2" | 100px

| rowspan="2" | Somdet Phra Maha Chakkraphat
สมเด็จพระมหาจักรพรรดิ

| rowspan="2" | Phra Chao Chang Pheuak
พระเจ้าช้างเผือก
or
Phra Thianracha
พระเทียรราชา

| rowspan="2" | 1509

| rowspan="2" | 1548

| colspan="2" rowspan="2" |1568 (20 years)
(59 years old)

| rowspan="2" | {{blist|Son of Ramathibodi II|Younger brother of Borommarachathirat IV and Chairachathirat|Seized the throne from a usurper|Became a Buddhist monk at Pegu (1564–1568), resumed power}}

| 100px
Ramesuan
(son)

100px
Mahin
(son)
align="center" |16

| 100px

| colspan="2" |Somdet Phra Mahinthrathirat
สมเด็จพระมหินทราธิราช

| 1539

| 1568

| 2 August 1569 (1 year)
(deposed)

| {{circa}} late 1569
(30 years old)

| {{blist|Son of Maha Chakkraphat and Queen Suriyothai}}

| Vacant

colspan="10" style="background-color:#FFC0CB" |First Fall of Ayutthaya

=Sukhothai dynasty (1569–1629)=

width=100% class="wikitable"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

! style="background-color:#F0DC82" width=1% | Viceroy

align="center" colspan="10" style="background-color:#FFC0CB" |Vassal of the First Toungoo Empire (1569–1584)
align="center" |17

| align="center" |100px

| align="center" |Somdet Phra Sanphet I
สมเด็จพระสรรเพชญ์ที่ ๑

| align="center" |Somdet Phra Maha Thammarachathirat
สมเด็จพระมหาธรรมราชาธิราช

| align="center" |1517

| align="center" |1569

| align="center" colspan="2" |{{circa}} 30 June 1590 (21 years)
(73 years old)

| {{blist|Former lord of Phitsanulok|Descended from the Phra Ruang dynasty of Sukhothai|Son-in-law of Maha Chakkraphat and Queen Suriyothai|Installed as vassal of Bayinnaung of the Toungoo Empire, declared independence in 1584}}

| align="center" |100px
Naresuan
(son)

align="center" colspan="10" style="background: #E0FFFF;" |Independence from the First Toungoo Empire, 1584
align="center" |18

| align="center" |100px

| align="center" |Somdet Phra Sanphet II
สมเด็จพระสรรเพชญ์ที่ ๒

| align="center" |Somdet Phra Naresuan the Great
สมเด็จพระนเรศวรมหาราช

| align="center" |1555/56

| align="center" |1 July 1590

| align="center" colspan="2" |25 April 1605 (15 years)
(49 years old)

| {{blist|Son of Maha Thammarachathirat}}

| align="center" |100px
Ekathotsarot
(brother)

align="center" |19

| align="center" |100px

| align="center" |Somdet Phra Sanphet III
สมเด็จพระสรรเพชญ์ที่ ๓

| align="center" |Somdet Phra Ekathotsarot
สมเด็จพระเอกาทศรถ

| align="center" |1557

| align="center" |25 April 1605

| align="center" colspan="2" |1610 (5 years)
(53 years old)

| {{blist|Brother of Naresuan|Son of Maha Thammarachathirat}}

| align="center" |100px
Suthat
(son)

align="center" |20

| align="center" |100px

| align="center" |Somdet Phra Sanphet IV
สมเด็จพระสรรเพชญ์ที่ ๔

| align="center" |Somdet Phra Si Saowaphak
สมเด็จพระศรีเสาวภาคย์

| align="center" |1585

| align="center" |1610

| align="center" colspan="2" |1611 (1 year, 2 months)
(26 years old)

| {{blist|Son of Ekathotsarot}}

| align="center" |Vacant

align="center" |21

| align="center" |100px

| align="center" |Somdet Phra Borommaracha I
สมเด็จพระบรมราชาที่ ๑

| align="center" |Somdet Phra Songtham
สมเด็จพระเจ้าทรงธรรม

| align="center" |1590

| align="center" |1611

| align="center" colspan="2" |12 December 1628 (17 years)
(38 years old)

| {{blist|Son of Ekathotsarot, invited to take the throne after leaving the Sangha (priesthood)}}

| align="center" |100px
Si Sorarak
(son)

align="center" |22

| align="center" |100px

| align="center" |Somdet Phra Borommaracha II
สมเด็จพระบรมราชาที่ ๒

| align="center" |Somdet Phra Chetthathirat (II)
สมเด็จพระเชษฐาธิราช

| align="center" |{{circa}} 1613

| align="center" |12 December 1628

| align="center" colspan="2" |1628–1629 (1 year)
(16 years old)

| {{blist|Son of Songtham}}

| rowspan="2" align="center" |Vacant

align="center" |23

| align="center" |100px

| align="center" colspan="2" |Somdet Phra Athittayawong
สมเด็จพระอาทิตยวงศ์

| align="center" |1620

| align="center" colspan="2" |1629 (36 days)
(usurped)

| align="center" |1637
(17 years old)

| {{blist|Younger brother of Chetthathirat|Son of Songtham}}

=Prasat Thong dynasty (1629–1688)=

width=100% class="wikitable"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

! style="background-color:#F0DC82" width=1% | Viceroy

align="center" |24

| align="center" |100px

| align="center" |Somdet Phra Chao Sanphet V
สมเด็จพระสรรเพชญ์ที่ ๕

| align="center" |Somdet Phra Chao Prasat Thong
สมเด็จพระเจ้าปราสาททอง

| align="center" |1599

| align="center" |1629{{Cite book|last1=Baker|first1=Chris|url=https://books.google.com/books?id=GHiuDgAAQBAJ|title=A History of Ayutthaya: Siam in the Early Modern World|last2=Phongpaichit|first2=Pasuk|publisher=Cambridge University Press|pages=|year=2017|isbn=978-1-316-64113-2|location=|edition=Kindle }}{{cite book |last1=Wyatt |first1=David K. |title=Thailand : A Short History |date=2003 |publisher=Silkworm Books |location=Chiang Mai |isbn=974957544X |page= |edition=2nd |ref=none}}

| align="center" colspan="2" |August 1655 (26 years)
(56 years old)

| {{blist|Usurper, former kalahom|Rumored to be a son of Ekathotsarot}}

| rowspan="2" align="center" |Vacant

align="center" |25

| align="center" |100px

| align="center" |Somdet Phra Sanphet VI
สมเด็จพระสรรเพชญ์ที่ ๖

| align="center" |Somdet Chao Fa Chai
สมเด็จเจ้าฟ้าไชย

| align="center" |1630

| align="center" |August 1655

| align="center" colspan="2" |1656 (1 year)
(26 years old)

| {{blist|Son of Prasat Thong}}

align="center" |26

| align="center" |100px

| align="center" |Somdet Phra Sanphet VII
สมเด็จพระสรรเพชญ์ที่ ๗

| align="center" |Somdet Phra Si Suthammaracha
สมเด็จพระศรีสุธรรมราชาธ

| align="center" |1600

| align="center" |August 1656

| align="center" colspan="2" |26 October 1656 (~2 months)
(56 years old)

| {{blist|Usurper, uncle of Chai|Younger brother of Prasat Thong}}

| align="center" |100px
Narai
(nephew)

align="center" |27

| align="center" |100px

| align="center" |Somdet Phra Ramathibodi III
สมเด็จพระรามาธิบดีที่ ๓

| align="center" |Somdet Phra Narai the Great
สมเด็จพระนารายณ์มหาราช

| align="center" |16 February 1632

| align="center" |26 October 1656

| align="center" colspan="2" |11 July 1688 (32 years)
(56 years old)

| {{blist|Usurper, nephew of Si Suthammaracha|Son of Prasat Thong|Half-brother of Chai|Former Front Palace}}

| align="center" |Vacant

align="center" colspan="10" style="background: #E0FFFF;" |The Siamese revolution of 1688; populist upheaval{{Cite book|last1=Baker|first1=Chris|url=https://books.google.com/books?id=GHiuDgAAQBAJ|title=A History of Ayutthaya: Siam in the Early Modern World|last2=Phongpaichit|first2=Pasuk|publisher=Cambridge University Press|pages=43|year=2017|isbn=978-1-316-64113-2|location=|edition=Kindle}}

=Ban Phlu Luang dynasty (1688–1767)=

width=100% class="wikitable"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

! style="background-color:#F0DC82" width=1% | Viceroy

align="center" |28

| align="center" |100px

| align="center" |Somdet Phra Phetracha
สมเด็จพระเพทราชา

| align="center" |Somdet Phra Mahaburut
สมเด็จพระมหาบุรุษ

| align="center" |1632

| align="center" |11 July 1688

| align="center" colspan="2" |5 February 1703 (14 years)
(71 years old)

| {{blist|Usurper, former commander of the Elephant Corps|Son-in-law of Narai}}

| align="center" |100px
Sorasak
(stepson)

align="center" |29

| align="center" |100px

| align="center" |Somdet Phra Sanphet VIII
สมเด็จพระสรรเพชญ์ที่ ๘

| align="center" |Somdet Phra Suriyenthrathibodi
สมเด็จพระเจ้าสุริเยนทราธิบดี
or
Phra Chao Seua
พระเจ้าเสือ

| align="center" |1661

| align="center" |5 February 1703

| align="center" colspan="2" |9 February 1709 (7 years)
(48 years old)

| {{blist|Stepson of Phetracha|Son of Narai and a Chiang Mai's princess that was later given to be Phetracha's wife}}

| align="center" |100px
Phet
(son)

align="center" |30

| align="center" |100px

| align="center" |Somdet Phra Sanphet IX
สมเด็จพระสรรเพชญ์ที่ ๙

| align="center" |Phra Chao Thai Sa
พระเจ้าท้ายสระ

| align="center" |1679

| align="center" |9 February 1709

| align="center" colspan="2" |13 January 1733 (23 years)
(54 years old)

| {{blist|Son of Suriyenthrathibodi}}

| align="center" |100px
Phon
(brother)

rowspan="2" align="center" |31

| rowspan="2" align="center" |100px

| rowspan="2" align="center" |Somdet Phra Maha Thammarachathirat II
สมเด็จพระมหา
ธรรมราชาธิราชที่ ๒

| rowspan="2" align="center" |Somdet Phra Chao Yu Hua Borommakot
สมเด็จพระเจ้าอยู่หัวบรมโกศ

| rowspan="2" align="center" |{{circa}} 1681Baker, Chris; Phongpaichit, Pasuk. A History of Thailand Third Edition (p. 301). Cambridge University Press. Kindle Edition.

| rowspan="2" align="center" |13 January 1733

| colspan="2" rowspan="2" align="center" |26 April 1758 (26 years)
(77 years old)

| rowspan="2" |{{blist|Brother of Thai Sa|Son of Suriyenthrathibodi|Former Front Palace}}

| align="center" |100px
Senaphithak
(son)

align="center" |100px
Phonphinit
(son)
align="center" |32

| align="center" |100px

| align="center" |Somdet Phra Maha Thammarachathirat III
สมเด็จพระมหา
ธรรมราชาธิราชที่ ๓

| align="center" |Somdet Phra Chao Uthumphon
สมเด็จพระเจ้าอุทุมพร

| align="center" |1733

| align="center" |1 May 1758

| align="center" |1758 (3 months)

| align="center" |1796
(~63 years old)

| {{blist|Son of Borommakot|Former Front Palace}}

| rowspan="2" align="center" |Vacant

align="center" |33

| align="center" |100px

| align="center" |Somdet Phra
Borommaracha III
สมเด็จพระบรมราชาที่ ๓

| align="center" |Somdet Phra Thinang Suriyat Amarin
สมเด็จพระที่นั่งสุริยาศน์อมรินทร์
or
Somdet Phra Chao
Ekkathat
สมเด็จพระเจ้าเอกทัศ

| align="center" |1718

| align="center" |1758

| align="center" |7 April 1767 (9 years)

| align="center" |17 April 1767
(49 years old)

| {{blist|Usurper, brother of Uthumphon|Son of Borommakot}}

align="center" colspan="10" style="background-color:#FFC0CB" |Second Fall of Ayutthaya

Thonburi Kingdom (1767–1782)

{{further|Thonburi Kingdom|Taksin's reunification of Siam}}

=Thonburi dynasty (1767–1782)=

width=100% class="wikitable"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=19% | Regnal name

! style="background-color:#F0DC82" width=18% | Personal name

! style="background-color:#F0DC82" width=4% | Birth

! style="background-color:#F0DC82" width=4% | Reign from

! style="background-color:#F0DC82" width=4% | Reign until

! style="background-color:#F0DC82" width=4% | Death

! style="background-color:#F0DC82" width=25% | Notes

! style="background-color:#F0DC82" width=1% | Viceroy

align="center" |1

| align="center" |100px

| align="center" |Somdet Phra Sanphet X
สมเด็จพระสรรเพชญ์ที่ ๑๐
or
Somdet Phra
Borommaracha IV
สมเด็จพระบรมราชาที่ ๔

| align="center" |Somdet Phra Chao Taksin the Great
สมเด็จพระเจ้าตากสินมหาราช

| align="center" |17 April 1734

| align="center" |28 December 1767

| align="center" |1 April 1782
(14 years)
(deposed)
{{cite book |last1=Terwiel |first1=B. J. (Barend Jan) |title=A history of modern Thailand, 1767-1942 |date=1983 |publisher=St. Lucia; New York : University of Queensland Press |isbn=978-0-7022-1892-7 |url=https://books.google.com/books?id=Tr1GAAAAMAAJ |archive-url=https://archive.org/details/historyofmodernt0000terw/ |archive-date=19 July 2021}}{{cite book |title=chinese society in thailand: an analytical history |date=1957 |publisher=cornell university press |url=https://archive.org/details/chinesesocietyin0000gwil/page/22/mode/2up?view=theater}}{{efn|Accounts vastly differ to when Taksin stepped down from the throne and entered the monkhood, which has been argued to have occurred as early as three months prior to his execution.{{cite web |title=ว่าด้วยพระเจ้าตาก ตอน 5: สองคน สองประวัติศาสตร์ EP.50 | website=YouTube |url=https://www.youtube.com/watch?v=G6xU49K4jZY |language=en |quote=3:41-3:55}}}}

|align="center" |7 April 1782
(47 years old)
(executed){{efn|Traditionally accepted date of his execution}}

| {{blist|Son of Yong Saetae, from a Teochew family named "Tea" ({{lang|zh|鄭}}) or "Zheng" in Mandarin Chinese, and Thephamat|Only king of Thonburi}}

| align="center" |100px
Inthraphithak
(son)

colspan="10" align="center" style="background: #E0FFFF;" |The coup seized power as the Rattanakosin Kingdom[https://www.silpa-mag.com/history/article_40561 คำให้การ วันประหาร “พระเจ้าตาก” ฉากสุดท้ายกรุงธนบุรี] ศิลปวัฒนธรรม ฉบับสิงหาคม 2552

Rattanakosin Kingdom (1782–present){{anchor|Rattanakosin Kingdom}}

{{further|Rattanakosin Kingdom (1782–1932)|l1=Rattanakosin Kingdom}}

=Chakri dynasty (1782–present)=

{{further|Chakri dynasty}}

width=100% class="wikitable"

! style="background-color:#F0DC82" width=3% | No.

! style="background-color:#F0DC82" width=1% | Portrait

! style="background-color:#F0DC82" width=21% | Regnal name

! style="background-color:#F0DC82" width=14% | Ceremonial name

! style="background-color:#F0DC82" width=10% | Birth
{{small|(Parents)}}

! style="background-color:#F0DC82" width=10% | Accession
{{small|(Coronation)}}

! style="background-color:#F0DC82" width=9% | Reign until

! style="background-color:#F0DC82" width=9% | Death

! style="background-color:#F0DC82" width=20% | Notes

! style="background-color:#F0DC82" width=1% | Viceroy

rowspan="2" align="center" |1

| rowspan="2" align="center" |100px

| rowspan="2" align="center" |Somdet Phra Ramathibodi IV
สมเด็จพระรามาธิบดีที่ ๔
(name originally taken)
or
Rama I
พระรามที่ ๑ (รัชกาลที่ ๑)
(retroactively given)

| rowspan="2" align="center" |Phrabat Somdet Phra Paramoruracha Maha Chakri Boromanat Phra Phutthayotfa Chulalok the Great
พระบาทสมเด็จพระปรโมรุราชามหาจักรีบรมนารถ พระพุทธยอดฟ้าจุฬาโลกมหาราช
(posthumously by Rama III)
or
Somdet Chao Phraya Maha Kasatseuk
สมเด็จเจ้าพระยามหากษัตริย์ศึก

| rowspan="2" align="center" |20 March 1737
{{small|4th child (2nd son) of Thongdi and Daoreung}}

| rowspan="2" align="center" |6 April 1782
{{small|({{br list|1st: 10 June 1782,|2nd: 17 June 1785}})}}

| colspan="2" rowspan="2" align="center" |7 September 1809
(27 years, 154 days)
(72 years old)

| rowspan="2" |{{blist|style=font-size:85%;|Father-in-law of Taksin|His father was a great-grandson of Kosa Pan, and his mother was the daughter of a Hokkien millionaire family.|Through the female line, he claimed to be a descendant of the Sukhothai dynasty.}}

| align="center" |100px
Maha Sura Singhanat
(brother)

align="center"|100px
Itsarasunthon
(son)
align="center" |2

| align="center" |100px

| align="center" |Rama II
พระรามที่ ๒ (รัชกาลที่ ๒)
(retroactively given)

| align="center" |Phrabat Somdet Phra Boromratchapongchet Maha Itsarasunthon Phra Phutthaloetla Naphalai
พระบาทสมเด็จพระบรมราชพงษเชษฐมเหศวรสุนทร พระพุทธเลิศหล้านภาลัย
(posthumously by Rama III)

| align="center" |24 February 1767
{{small|4th child (2nd son) of Rama I and Queen Amarindra}}

| align="center" |7 September 1809
{{small|(17 September 1809)}}

| colspan="2" align="center" |21 July 1824
(14 years, 317 days)
(57 years old)

| {{blist|style=font-size:85%;|Son of Rama I}}

| align="center" |100px
Maha Senanurak
(brother)

align="center" |3

| align="center" |100px

| align="center" |Rama III
พระรามที่ ๓ (รัชกาลที่ ๓)
(retroactively given)

| align="center" |Phrabat Somdet Phra Paramathiworaset Maha Chetsadabodin Phra Nangklao Chao Yu Hua
พระบาทสมเด็จพระปรมาธิวรเสรฐมหาเจษฎาบดินทรฯ พระนั่งเกล้าเจ้าอยู่หัว
(posthumously by Rama IV)
or
Phra Maha Chettha Chao
พระมหาเจษฎาราชเจ้า

| align="center" |31 March 1788
{{small|3rd child (2nd son) of Rama II and 1st child of Consort Sri Sulalai}}

| align="center" |21 July 1824
{{small|(1 August 1824)}}

| colspan="2" align="center" |2 April 1851
(26 years, 255 days)
(63 years old)

| {{blist|style=font-size:85%;|Son of Rama II|His mother was a great-great-great-great-granddaughter of Sultan Sulaiman Shah of the Sultanate of Singora.}}

| align="center" |100px
Sakdiphonlasep
(uncle)

align="center" |4

| align="center" |100px

| align="center" |Rama IV
พระรามที่ ๔ (รัชกาลที่ ๔)
(retroactively given)

| align="center" |Phrabat Somdet Phra Poramenthra Ramathibodhi Srisindra Maha Mongkut Phra Chomklao Chao Yu Hua
พระบาทสมเด็จพระปรเมนทรรามาธิบดีศรีสินทรมหามงกุฎ พระจอมเกล้าเจ้าอยู่หัว
or
Phra Sayam Thewa Maha Makut Witthaya the Great
พระสยามเทวมหามกุฏวิทยมหาราช

| align="center" |18 October 1804
{{small|44th child (22nd son) of Rama II and 2nd child of Queen Sri Suriyendra}}

| align="center" |2 April 1851
{{small|(15 May 1851)}}

| colspan="2" align="center" |1 October 1868
(17 years, 182 days)
(63 years old)

| {{blist|style=font-size:85%;|Half-brother of Rama III|Son of Rama II}}

| align="center" |100px
Pinklao
(brother)

colspan="10" align="center" style="background:#CC9966" |The feudal system was changed to absolute monarchy in 1892
rowspan="2" align="center" |5

| rowspan="2" align="center" |100px

| rowspan="2" align="center" |Rama V
พระรามที่ ๕ (รัชกาลที่ ๕)
(retroactively given)

| rowspan="2" align="center" |Phrabat Somdet Phra Poraminthra Maha Chulalongkorn Phra Chulachomklao Chao Yu Hua
พระบาทสมเด็จพระปรมินทรมหาจุฬาลงกรณ์ฯ พระจุลจอมเกล้าเจ้าอยู่หัว
or
Phra Piya the Great
พระปิยมหาราช
(his full name is 979 characters long)

| rowspan="2" align="center" |20 September 1853
{{small|9th child (5th son) of Rama IV and 1st child of Queen Debsirindra}}

| rowspan="2" align="center" |1 October 1868
{{small|(1st: 11 November 1868, 2nd: 16 November 1873)}}

| colspan="2" rowspan="2" align="center" |23 October 1910
(42 years, 22 days)
(57 years old)

| rowspan="2" |{{blist|style=font-size:85%;|Son of Rama IV|Under regency of Sri Suriwongse until 1873}}

| align="center" |100px
Wichaichan
(cousin)

align="center" |Viceroyalty abolished in 1885 after the Front Palace Crisis
align="center" |6

| align="center" |100px

| align="center" |Rama VI
พระรามที่ ๖ (รัชกาลที่ ๖)
(new regnal name)

| align="center" |Phrabat Somdet Phra Poramenthra Maha Vajiravudh Phra Mongkutklao Chao Yu Hua
พระบาทสมเด็จพระปรเมนทรมหาวชิราวุธ พระมงกุฎเกล้าเจ้าอยู่หัว
or
Phrabat Somdet Phra Ramathibodi Sisinthara Maha Vajiravudh Phra Mongkutklao Chao Yu Hua
พระบาทสมเด็จพระรามาธิบดีศรีสินทรมหาวชิราวุธ พระมงกุฎเกล้าเจ้าอยู่หัว
(name to be used during his lifetime)
or
Phra Maha Thirarat Chao
พระมหาธีรราชเจ้า

| align="center" |1 January 1881
{{small|28th child (11th son) of Rama V and 2nd child of Queen Saovabha Phongsri}}

| align="center" |23 October 1910
{{small|(1st: 11 November 1910, 2nd: 28 November 1911)}}

| colspan="2" align="center" |26 November 1925
(15 years, 34 days)
(44 years old)

| colspan="2" |{{blist|style=font-size:85%;|Son of Rama V}}

align="center" |7

| align="center" |100px

| align="center" |Rama VII
พระรามที่ ๗
(รัชกาลที่ ๗)

| align="center" |Phrabat Somdet Phra Poramenthra Maha Prajadhipok Phra Pokklao Chao Yu Hua
พระบาทสมเด็จพระปรมินทรมหาประชาธิปก พระปกเกล้าเจ้าอยู่หัว

| align="center" |8 November 1893
{{small|27th child (31st son) of Rama V and 9th child of Queen Saovabha Phongsri}}

| align="center" |26 November 1925
{{small|(25 February 1926)}}

| align="center" |2 March 1935
(9 years, 96 days)
(abdicated)

| align="center" |30 May 1941
(47 years old)

| colspan="2" |{{blist|style=font-size:85%;|Younger brother of Rama VI|Son of Rama V|Last absolute monarch}}

colspan="10" align="center" style="background:#C0C0C0" |The Siamese revolution of 1932 ended absolute monarchy
align="center" |8

| align="center" |100px

| align="center" |Rama VIII
พระรามที่ ๘
(รัชกาลที่ ๘)

| align="center" |Phrabat Somdet Phra Poramenthra Maha Ananda Mahidol Phra Atthamaramathibodin
พระบาทสมเด็จพระปรเมนทรมหาอานันทมหิดล พระอัฐมรามาธิบดินทร

| align="center" |20 September 1925
{{small|2nd child (1st son) of Mahidol Adulyadej and Princess Srinagarindra}}

| align="center" |2 March 1935
{{small|(13 August 1946; posthumous)}}{{cite book |last1=Handley |first1=Paul M. |title=The King Never Smiles: A Biography of Thailand's Bhumibol Adulyadej |date=1 January 2006 |publisher=Yale University Press |isbn=978-0-300-13059-1 |page=95 |url=https://books.google.com/books?id=nDspKDZkgcQC |language=en}}

| colspan="2" align="center" |9 June 1946
(11 years, 99 days)
(20 years old)

| colspan="2" |{{blist|style=font-size:85%;|Grandson of Rama V|Nephew of Rama VII|Under regency from 1935 to 1946}}

align="center" |9

| align="center" |100px

| align="center" |Rama IX
พระรามที่ ๙
(รัชกาลที่ ๙)

| align="center" |Phrabat Somdet Phra Poraminthra Maha Bhumibol Adulyadej the Great Mahitalathibet Ramathibodi Chakri Naribodin Sayamintharathirat Boromanatbophit
พระบาทสมเด็จพระปรมินทรมหาภูมิพลอดุลยเดช มหาราช มหิตลาธิเบศรรามาธิบดี จักรีนฤบดินทร สยามินทราธิราช บรมนาถบพิตร
or
Phra Phatthara the Great
พระภัทรมหาราช

| align="center" |5 December 1927
{{small|3rd child (2nd son) of Mahidol Adulyadej and Princess Srinagarindra}}

| align="center" |9 June 1946
{{small|(5 May 1950)}}

| colspan="2" align="center" |13 October 2016
(70 years, 126 days)
(88 years old)

| colspan="2" |{{blist|style=font-size:85%;|Younger brother of Rama VIII|Grandson of Rama V|Under regency from 1946 to 1949|Longest-reigning Thai monarch and third longest-reigning monarch in history}}

align="center" |10

| align="center" |100px

| align="center" |Rama X
พระรามที่ ๑๐
(รัชกาลที่ ๑๐)

| align="center" |Phrabat Somdet Phra Poramenthra Ramathibodi Sisinthara Maha Vajiralongkorn Phra Wachiraklao Chao Yu Hua
พระบาทสมเด็จพระปรเมนทรรามาธิบดีศรีสินทรมหาวชิราลงกรณ พระวชิรเกล้าเจ้าอยู่หัว

| align="center" |28 July 1952
{{small|2nd child (only son) of Rama IX and Queen Sirikit}}

| align="center" |13 October 2016
{{small|(4 May 2019){{cite news |title=Thai king to be crowned in coronation ceremonies May 4–6 - palace |url=https://www.euronews.com/2019/01/01/thai-king-to-be-crowned-in-coronation-ceremonies-may-4-6-palace |access-date=12 November 2019 |work=euronews |date=1 January 2019 |language=en}}}}

| colspan="2" align="center" |Incumbent
({{age in years and days|2016|10|13}})
({{age|1952|7|28}} years old)

| colspan="2" |{{blist|style=font-size:85%;|Son of Rama IX}}

Timeline of monarchs

{{#tag:timeline|

ImageSize = width:1600 height:auto barincrement:12

PlotArea = top:3 bottom:50 right:45 left:20

AlignBars = justify

DateFormat = yyyy

Period = from:1180 till:2045

Define $now = {{CURRENTYEAR}}

TimeAxis = orientation:horizontal

Colors =

id:canvas value:rgb(1,1,1)

id:p value:rgb(0.5,0.75,1)

id:u value:rgb(0.75,0,0)

id:s value:rgb(1,0,0)

id:d value:rgb(0.5,0.5,1)

id:h value:rgb(0.75,0.25,0.75)

id:b value:rgb(1,0.5,0.75)

id:t value:rgb(1,0.65,0)

id:c value:rgb(1,0.91,0)

id:gray1 value:gray(0.8)

id:gray2 value:gray(0.9)

id:pl value:rgb(0.85,0.925,1)

id:ul value:rgb(0.925,0.7,0.7)

id:sl value:rgb(1,0.7,0.7)

id:dl value:rgb(0.85,0.85,1)

id:hl value:rgb(0.925,0.775,0.925)

id:bl value:rgb(1,0.85,0.925)

id:tl value:rgb(1,0.865,0.7)

id:cl value:gray(0.9)

id:w value:rgb(1,1,1)

ScaleMajor = gridcolor:gray1 unit:year increment:50 start:1180

ScaleMinor = gridcolor:gray2 unit:year increment:5 start:1185

Backgroundcolors = canvas:canvas

BarData =

barset:Rulers

bar:Dynasty

bar:space0

bar:space1

bar:1

bar:2

bar:3

bar:4

bar:5

bar:6

bar:7

bar:8

bar:9

bar:10

bar:11

bar:12

bar:13

bar:15

bar:16

bar:17

bar:18

bar:19

bar:20

bar:21

bar:22

bar:23

bar:24

bar:25

bar:26

bar:27

bar:28

bar:29

bar:30

bar:31

bar:32

bar:33

bar:34

bar:35

bar:36

bar:37

bar:38

bar:39

bar:40

bar:41

bar:42

bar:43

bar:44

bar:45

bar:46

bar:47

bar:48

bar:49

bar:50

bar:51

bar:52

bar:53

bar:54

bar:55

bar:56

bar:57

bar:58

bar:59

bar:60

PlotData =

width:25 align:center fontsize:S shift:(0,-5) textcolor:black

bar:Dynasty

from: 1238 till:1351 color: p text:Phra Ruang

from: 1351 till:1370 color: u text:Uthong

from: 1370 till:1388 color: s text:

from: 1388 till:1409 color: u text:

from: 1409 till:1569 color: s text:Suphannaphum

from: 1569 till:1629 color: d text:Sukhothai

from: 1629 till:1688 color: h text:Prasat Thong

from: 1688 till:1767 color: b text:Ban Phlu Luang

from: 1767 till:1782 color: t text:Thonburi

from: 1782 till:$now color: c text:Chakri

width:5 align:left fontsize:S shift:(5,-3) anchor:till

barset:Rulers

bar:space0 from:1238 till:1350 color:p

bar:1

from:1188 till:1238 color:pl

from:1238 till:1270 color:p text:"Si Inthrathit"

bar:2

from:1237 till:1270 color:pl

from:1270 till:1279 color:p text:"Ban Mueang"

bar:3

from:1247 till:1279 color:pl

from:1279 till:1298 color:p text:"Ram Khamhaeng the Great"

bar:4

from:1262 till:1298 color:pl

from:1298 till:1323 color:p text:"Loe Thai"

bar:5

from:1266 till:1323 color:pl

from:1323 till:1347 color:p text:"Ngua Nam Thum"

bar:6

from:1300 till:1347 color:pl

from:1347 till:1368 color:p text:"Li Thai"

bar:7

from:1358 till:1368 color:pl

from:1368 till:1400 color:p text:"Lue Thai"

bar:8

from:1380 till:1400 color:pl

from:1400 till:1419 color:p text:"Sai Lue Thai"

bar:9

from:1401 till:1419 color:pl

from:1419 till:1438 color:p text:"Borommapan"

bar:10

from:1314 till:1351 color:ul

from:1351 till:1369 color:u text:"Ramathibodi"

bar:11

from:1339 till:1369 color:ul

from:1369 till:1370 color:u

from:1370 till:1388 color:ul

from:1388 till:1395 color:u text:"Ramesuan"

bar:12

from:1310 till:1370 color:sl

from:1370 till:1388 color:s text:"Borommarachathirat I"

bar:13

from:1374 till:1388 color:sl

from:1388 till:1388 color:s text:"Thong Lan"

bar:15

from:1359 till:1395 color:ul

from:1395 till:1409 color:u text:"Ramrachathirat"

bar:16

from:1359 till:1409 color:sl

from:1409 till:1424 color:s text:"Nakhon Intharachathirat"

bar:17

from:1386 till:1424 color:sl

from:1424 till:1448 color:s text:"Borommarachathirat II"

bar:18

from:1431 till:1448 color:sl

from:1448 till:1488 color:s text:"Borommatrailokkanat"

bar:19

from:1462 till:1488 color:sl

from:1488 till:1491 color:s text:"Borommarachathirat III"

bar:20

from:1473 till:1491 color:sl

from:1491 till:1529 color:s text:"Ramathibodi II"

bar:21

from:1488 till:1529 color:sl

from:1529 till:1533 color:s text:"Borommarachathirat IV"

bar:22

from:1529 till:1533 color:sl

from:1533 till:1533 color:s text:"Ratsadathirat"

bar:23

from:1499 till:1533 color:sl

from:1533 till:1546 color:s text:"Chairachathirat"

bar:24

from:1535 till:1546 color:sl

from:1546 till:1548 color:s text:"Yotfa"

bar:25

from:1503 till:1548 color:sl

from:1548 till:1549 color:s text:"Worawongsathirat"

bar:26

from:1509 till:1549 color:sl

from:1549 till:1568 color:s text:"Maha Chakkraphat"

bar:27

from:1539 till:1568 color:sl

from:1568 till:1569 color:s text:"Mahinthrathirat"

bar:28

from:1517 till:1569 color:dl

from:1569 till:1590 color:d text:"Sanphet I"

bar:29

from:1555 till:1590 color:dl

from:1590 till:1605 color:d text:"Sanphet II the Great"

bar:30

from:1557 till:1605 color:dl

from:1605 till:1610 color:d text:"Sanphet III"

bar:31

from:1585 till:1610 color:dl

from:1610 till:1611 color:d text:"Sanphet IV"

bar:32

from:1590 till:1611 color:dl

from:1611 till:1628 color:d text:"Borommaracha I"

bar:33

from:1613 till:1628 color:dl

from:1628 till:1629 color:d text:"Borommaracha II"

bar:34

from:1620 till:1628 color:dl

from:1629 till:1630 color:d

from:1630 till:1637 color:dl text:"Athittayawong"

bar:35

from:1599 till:1629 color:hl

from:1629 till:1655 color:h text:"Sanphet V"

bar:36

from:1630 till:1655 color:hl

from:1655 till:1656 color:h text:"Sanphet VI"

bar:37

from:1600 till:1656 color:hl

from:1656 till:1656 color:h text:"Sanphet VII"

bar:38

from:1632 till:1656 color:hl

from:1656 till:1688 color:h text:"Ramathibodi III the Great"

bar:39

from:1632 till:1688 color:bl

from:1688 till:1703 color:b text:"Phetracha"

bar:40

from:1661 till:1703 color:bl

from:1703 till:1709 color:b text:"Sanphet VIII"

bar:41

from:1679 till:1709 color:bl

from:1709 till:1733 color:b text:"Sanphet IX"

bar:42

from:1681 till:1733 color:bl

from:1733 till:1758 color:b text:"Maha Thammarachathirat II"

bar:43

from:1733 till:1758 color:bl

from:1758 till:1759 color:b

from:1759 till:1796 color:bl text:"Maha Thammarachathirat III"

bar:44

from:1718 till:1758 color:bl

from:1758 till:1767 color:b text:"Borommaracha III"

bar:45

from:1734 till:1767 color:tl

from:1767 till:1782 color:t text:"Sanphet X the Great"

bar:46

from:1737 till:1782 color:cl

from:1782 till:1809 color:c text:"Rama I the Great"

bar:47

from:1767 till:1809 color:cl

from:1809 till:1824 color:c text:"Rama II"

bar:48

from:1788 till:1824 color:cl

from:1824 till:1851 color:c text:"Rama III"

bar:49

from:1804 till:1851 color:cl

from:1851 till:1868 color:c text:"Rama IV"

bar:50

from:1853 till:1868 color:cl

from:1868 till:1910 color:c text:"Rama V the Great"

bar:51

from:1881 till:1910 color:cl

from:1910 till:1925 color:c text:"Rama VI"

bar:52

from:1893 till:1925 color:cl

from:1925 till:1935 color:c

from:1935 till:1941 color:cl text:"Rama VII"

bar:53

from:1925 till:1935 color:cl

from:1935 till:1946 color:c text:"Rama VIII"

bar:54

from:1927 till:1946 color:cl

from:1946 till:2016 color:c text:"Rama IX the Great"

bar:55

from:1952 till:2016 color:cl

from:2016 till:$now color:c text:"Rama X"

barset:skip

}}

Longest reigning monarchs

class="wikitable"

|+

! rowspan="2" |Ranking

! colspan="2" |Holder of Rank

! rowspan="2" |Reign Length

! colspan="2" |Reign

! colspan="2" |Place

Image

!Name

!Start

!End

!Dynasty

!Kingdom

align="center" |1

| align="center" |100px

| align="center" |Rama IX

พระรามที่ ๙

(รัชกาลที่ ๙)

|70 years

|1946

|2016

|Chakri

|Thailand

align="center" |2

| align="center" |100px

| align="center" |Rama V

พระรามที่ ๕

(รัชกาลที่ ๕)

|42 years

|1868

|1910

|Chakri

|Rattanakosin

align="center" |3

| align="center" |100px

|Somdet Phra Borommatrailokkanat

สมเด็จพระบรมไตรโลกนาถ

|40 years

|1448

|1488

|Suphannaphum

|Ayutthaya

align="center" |4

| align="center" |100px

| align="center" |Somdet Phra Ramathibodi II

สมเด็จพระรามาธิบดีที่ ๒

|38 years

|1473

|1491

|Suphannaphum

|Ayutthaya

align="center" |5

| align="center" |100px

| align="center" |Somdet Phra Ramathibodi III

สมเด็จพระรามาธิบดีที่ ๓

|32 years

|1656

|1688

|Prasat Thong

|Ayutthaya

align="center" |(-)

| align="center" |100px

| align="center" |Phra Maha Thammaracha II

พระมหาธรรมราชาที่ ๒

|32 years

|1368

|1400

|Phra Ruang

|Sukhothai

align="center" |(-)

|100px

|Kamonteng Ansi Inthrabodinthrathit

กมรเตงอัญศรีอินทรบดินทราทิตย์

|32 years

|1238

|1270

|Phra Ruang

|Sukhothai

align="center" |5

| align="center" |100px

| align="center" |Somdet Phra Ramathibodi IV

สมเด็จพระรามาธิบดีที่ ๔

or

Rama I

พระรามที่ ๑

(รัชกาลที่ ๑)

|27 years

|1782

|1809

|Chakri

|Rattanakosin

align="center" |6

| align="center" |100px

| align="center" |Rama III

พระรามที่ ๓ (รัชกาลที่ ๓)

|26 years

|1824

|1851

|Chakri

|Rattanakosin

align="center" |(-)

| align="center" |100px

| align="center" |Somdet Phra Chao Sanphet V

สมเด็จพระสรรเพชญ์ที่ ๕

|26 years

|1629

|1655

|Prasat Thong

|Ayutthaya

align="center" |7

| align="center" |100px

| align="center" |Somdet Phra Maha Thammarachathirat II

สมเด็จพระมหา

ธรรมราชาธิราชที่ ๒

|25 years

|1733

|1758

|Ban Phlu Luang

|Ayutthaya

align="center" |(-)

| align="center" |100px

| align="center" |Phraya Loe Thai

พระยาเลอไทย

|25 years

|1298

|1323

|Phra Ruang

|Sukhothai

align="center" |8

|100px

|Phraya Ngua Nam Thum

พระยางั่วนำถุม

|24 years

|1323

|1347

|Phra Ruang

|Sukhothai

align="center" |(-)

|100px

|Somdet Phra Borommarachathirat II

สมเด็จพระบรมราชาธิราชที่ ๒

|24 years

|1424

|1448

|Suphannaphum

|Ayutthaya

align="center" |9

| align="center" |100px

| align="center" |Somdet Phra Sanphet IX

สมเด็จพระสรรเพชญ์ที่ ๙

|23 years

|1709

|1733

|Ban Phlu Luang

|Ayutthaya

align="center" |10

|100px

|Phra Maha Thammaracha I

พระมหาธรรมราชาที่ ๑

|21 years

|1347

|1368

|Phra Ruang

|Sukhothai

Shortest reigning monarchs

class="wikitable"

! rowspan="2" |Ranking

! colspan="2" |Holder of Rank

! rowspan="2" |Reign Length

! colspan="2" |Reign

! colspan="2" |Place

Image

!Name

!Start

!End

!Dynasty

!Kingdom

align="center" |1

| align="center" |100px

| align="center" |Somdet Phra Chao Thong Lan

สมเด็จพระเจ้าทองลัน

|7 days

|1388

|1388

|Suphannaphum

|Ayutthaya

align="center" |2

| align="center" |100px

| align="center" |Somdet Phra Athittayawong

สมเด็จพระอาทิตยวงศ์

|36 days

|1629

|1629

|Sukhothai

|Ayutthaya

align="center" |3

| align="center" |100px

| align="center" |Somdet Phra Sanphet VII

สมเด็จพระสรรเพชญ์ที่ ๗

|2 months

|1656

|1656

|Prasat Thong

|Ayutthaya

align="center" |4

| align="center" |100px

| align="center" |Somdet Phra Maha Thammarachathirat III

สมเด็จพระมหา

ธรรมราชาธิราชที่ ๓

|3 months

|1758

|1758

|Ban Phlu Luang

|Ayutthaya

align="center" |5

| align="center" |100px

| align="center" |Khun Worawongsathirat

ขุนวรวงศาธิราช

|5 months

|1548

|1549

|Suphannaphum

|Ayutthaya

align="center" |(-)

| align="center" |100px

| align="center" |Somdet Phra Ratsadathirat

สมเด็จพระรัษฎาธิราช

|5 months

|1533

|1533

|Suphannaphum

|Ayutthaya

align="center" |6

| align="center" |100px

| align="center" |Somdet Phra Sanphet VI

สมเด็จพระสรรเพชญ์ที่ ๖

|1 year

|1655

|1656

|Prasat Thong

|Ayutthaya

align="center" |(-)

| align="center" |100px

| align="center" |Somdet Phra Mahinthrathirat

สมเด็จพระมหินทราธิราช

|1 year

|1568

|1569

|Suphannaphum

|Ayutthaya

align="center" |(-)

| align="center" |100px

| align="center" |Somdet Phra Borommaracha II

สมเด็จพระบรมราชาที่ ๒

|1 year

|1628

|1629

|Sukhothai

|Ayutthaya

align="center" |7

| align="center" |100px

| align="center" |Somdet Phra Sanphet IV

สมเด็จพระสรรเพชญ์ที่ ๔

|1 year 2 month

|1610

|1611

|Sukhothai

|Ayutthaya

align="center" |8

| align="center" |100px

| align="center" |Somdet Phra Yotfa

สมเด็จพระยอดฟ้า

|2 years

|1546

|1548

|Suphannaphum

|Ayutthaya

align="center" |9

| align="center" |100px

| align="center" |Somdet Phra Borommarachathirat III

สมเด็จพระบรมราชาธิราชที่ ๓

|3 years

|1488

|1491

|Suphannaphum

|Ayutthaya

align="center" |10

| align="center" |100px

| align="center" |Somdet Phra Borommarachathirat IV

สมเด็จพระบรมราชาธิราชที่ ๔

|4 years

|1529

|1533

|Suphannaphum

|Ayutthaya

Longest and shortest living monarch

class="wikitable"

! rowspan="2" |

! colspan="2" |Longest-living

! rowspan="2" |Lifespan

! rowspan="2" |Reason of Passing

! rowspan="2" |

! colspan="2" |Shortest-living

! rowspan="2" |Lifespan

! rowspan="2" |Reason of Passing

Image

!Name

!Image

!Name

align="center" |1

| align="center" |100px

| align="center" |Rama IX

พระรามที่ ๙

(รัชกาลที่ ๙)

|1927-2016

(88 years old)

|Old age

! align="center" |1

| align="center" |100px

| align="center" |Somdet Phra Ratsadathirat

สมเด็จพระรัษฎาธิราช

|1529-1533

(4 years old)

|Executed by Somdet Phra Chairachathirat

align="center" |2

| align="center" |100px

| align="center" |Kamonteng Ansi Inthrabodinthrathit

กมรเตงอัญศรีอินทรบดินทราทิตย์

|1188-1270

(82 years old)

|Old age

! align="center" |2

| align="center" |100px

| align="center" |Somdet Phra Yotfa

สมเด็จพระยอดฟ้า

|1535-1548

(13 years old)

|Executed by Khun Worawongsathirat

align="center" |3

| align="center" |100px

| align="center" |Phraya Ngua Nam Thum

พระยางั่วนำถุม

|1266-1347

(81 years old)

|Old age / Usurpation

! align="center" |3

| align="center" |100px

| align="center" |Somdet Phra Chao Thong Lan

สมเด็จพระเจ้าทองลัน

|1374-1388

(14 years old)

|Executed by Somdet Phra Ramesuan

align="center" |4

| align="center" |100px

| align="center" |Somdet Phra Borommarachathirat I

สมเด็จพระบรมราชาธิราชที่ ๑

|1310-1388

(78 years old)

|Old age

! align="center" |4

| align="center" |100px

| align="center" |Somdet Phra Borommaracha II

สมเด็จพระบรมราชาที่ ๒

|1613-1629

(16 years old)

|Executed by Somdet Phra Chao Sanphet V

align="center" |5

| align="center" |100px

| align="center" |Somdet Phra Maha Thammarachathirat II

สมเด็จพระมหา

ธรรมราชาธิราชที่ ๒

|1681-1758

(77 years old)

|Old age

! align="center" |5

| align="center" |100px

| align="center" |Somdet Phra Athittayawong

สมเด็จพระอาทิตยวงศ์

|1620-1637

(17 years old)

|Executed by Somdet Phra Chao Sanphet V

align="center" |6

| align="center" |100px

| align="center" |Somdet Phra Sanphet I

สมเด็จพระสรรเพชญ์ที่ ๑

|1517-1590

(73 years old)

|Old age

! align="center" |6

| align="center" |100px

| align="center" |Rama VIII

พระรามที่ ๘

(รัชกาลที่ ๘)

|1925-1946

(20 years old)

|Assassination / Suicide

align="center" |(7)*

| align="center" |100px

| align="center" |Rama X

พระรามที่ ๑๐

(รัชกาลที่ ๑๐)

|1952-present

(72 years old)

|(still living)

! align="center" |7

| align="center" |100px

| align="center" |Somdet Phra Sanphet IV

สมเด็จพระสรรเพชญ์ที่ ๔

|1585-1611

(26 years old)

|Assassination

align="center" |8

| align="center" |100px

| align="center" |Somdet Phra Ramathibodi IV

สมเด็จพระรามาธิบดีที่ ๔

(name originally taken)

or

Rama I

พระรามที่ ๑ (รัชกาลที่ ๑)

(retroactively given)

|1737-1809

(72 years old)

|Old age

! align="center" |8

| align="center" |100px

| align="center" |Somdet Phra Sanphet IV

สมเด็จพระสรรเพชญ์ที่ ๔

|1630-1656

(26 years old)

|Executed by Somdet Phra Sanphet VII

align="center" |9

| align="center" |100px

| align="center" |Somdet Phra Phetracha

สมเด็จพระเพทราชา

|1632-1703

(71 years old)

|Old age

! align="center" |9

| align="center" |100px

| align="center" |Somdet Phra Borommarachathirat III

สมเด็จพระบรมราชาธิราชที่ ๓

|1462-1491

(29 years old)

|Unknown cause

align="center" |10

| align="center" |100px

| align="center" |Phra Maha Thammaracha I

พระมหาธรรมราชาที่ ๑

|1300-1368

(68 years old)

|Old age

! align="center" |10

| align="center" |100px

| align="center" |Somdet Phra Mahinthrathirat

สมเด็จพระมหินทราธิราช

|1539-1569

(30 years old)

|Exposure (on his way as a hostage to Pegu)

Family tree of the Thai monarchs

Family Tree of The Kings of Siam.png|Family tree of the kings of Siam/Thailand

Used regnal names

width=100% class="wikitable"

! rowspan="2" style="width=25%" | Name

! colspan="2" style="width=10%" | Last holder

! rowspan="2" style="width=30%" | Next numerical order

Image

!Name

Rama

|File:Portrait of King Rama X.jpg

|Rama X
พระรามที่ ๑๐ (รัชกาลที่ ๑๐)

|Rama XI

Ramathibodi

|File:King Rama I of Siam (Yodfa Chulalok) Portrait.jpg

|Somdet Phra Ramathibodi IV
สมเด็จพระรามาธิบดีที่ ๔
(Rama I's original regnal name)

|Ramathibodi V

Sanphet

|File:King Taksin & Phraya Pichai Dabhak Monument in Wat Kungtapao 002.jpg

|Somdet Phra Sanphet X
สมเด็จพระสรรเพชญ์ที่ ๑๐

|Sanphet XI

Borommaracha

|File:KingEkkathat Wat Lamud Ayutthaya (cropped).jpg

|Somdet Phra Borommaracha III
สมเด็จพระบรมราชาที่ ๓

|Borommaracha IV

Borommarachathirat

|File:No picture Thai monarchs.svg

|Somdet Phra Borommarachathirat IV
สมเด็จพระบรมราชาธิราชที่ ๔

|Borommarachathirat V

Maha Thammaracha

|File:No picture Thai monarchs.svg

|Phra Maha Thammaracha IV
พระมหาธรรมราชาที่ ๔

|Maha Thammaracha V

Thammarachathirat

|File:Burmese Depiction of an Ayutthaya King.jpg

|Somdet Phra Maha Thammarachathirat III
{{nowrap|สมเด็จพระมหาธรรมราชาธิราชที่ ๓}}

|Thammarachathirat IV

Phetracha

|File:PITERA TJAY Rex Siam by Gaspar Bouttat 1690.jpg

|Somdet Phra Phetracha
สมเด็จพระเพทราชา

|Phetracha II

Athittayawong

|File:No picture Thai monarchs.svg

|Somdet Phra Athittayawong
สมเด็จพระอาทิตยวงศ์

|Athittayawong II

{| class="wikitable" width="100%"

It is the case that the name Athittayawong was used twice, once as a personal name and once as a regnal name carried over from personal name. In this case, it can be said that King Athittayawong was actually Athittayawong II, and the next in line would be Atthitayawong III. Borommarachathirat IV's personal name was Atthitayawong. Hence, he could be considered Atthitayawong I.

|-

|Mahintharathirat

|File:No picture Thai monarchs.svg

|Somdet Phra Mahintharathirat
สมเด็จพระมหินทราธิราช

|Mahintharathirat II

|-

|Ratsadathirat

|File:No picture Thai monarchs.svg

|Somdet Phra Ratsadathirat
สมเด็จพระรัษฎาธิราช

|Ratsadathirat II

|-

|Chairachathirat

|File:No picture Thai monarchs.svg

|Somdet Phra Chairachathirat
สมเด็จพระไชยราชาธิราช

|Chairachathirat II

|-

|Yotfa

|File:No picture Thai monarchs.svg

|Somdet Phra Yotfa
สมเด็จพระยอดฟ้า

|Yotfa II

|-

|Worawongsathirat

|File:No picture Thai monarchs.svg

|Khun Worawongsathirat
ขุนวรวงศาธิราช

|Worawongsathirat II

|-

|Maha Chakkraphat

|File:No picture Thai monarchs.svg

|Somdet Phra Maha Chakkraphat
สมเด็จพระมหาจักรพรรดิ

|Maha Chakkraphat II

|-

|Intharachathirat

|File:No picture Thai monarchs.svg

|Somdet Phra Intharachathirat
สมเด็จพระนครินทราธิราช

|Intharachathirat II

|-

|Borommatrailokkanat

|File:No picture Thai monarchs.svg

|Somdet Phra Borommatrailokkanat
สมเด็จพระบรมไตรโลกนาถ

|Borommatrailokkanat II

|-

|Ramesuan

|File:Portrait of King Ramesuan(2).jpg

|Somdet Phra Ramesuan
สมเด็จพระราเมศวร

|Ramesuan II

class="wikitable" width="100%"
It is the case that the name Ramesuan was used twice, once as a personal name and once as a regnal name. In this case, it can be said that King Ramesuan was actually Ramesuan I. Borommatrailokkanat's personal name was Ramesuan. Hence, he could be considered Ramesuan II.

|-

|Ramrachathirat

|File:No picture Thai monarchs.svg

|Somdet Phra Ramrachathirat
สมเด็จพระรามราชาธิราช

|Ramrachathirat II

|-

|Thong Lan

|File:No picture Thai monarchs.svg

|Somdet Phra Chao Thong Lan
สมเด็จพระเจ้าทองลัน

|Thong Lan II

|-

|Loe Thai

|File:No picture Thai monarchs.svg

|Phraya Loe Thai
พระยาเลอไทย

|Loe Thai II

|-

|Ngua Nam Thum

|File:No picture Thai monarchs.svg

|Phraya Ngua Nam Thum
พระยางั่วนำถุม

|Ngua Nam Thum II

|-

|Rammarat

|File:Ramkhamhaeng the Great.jpg

|Phrabat Kamonteng Ansi Rammarat
พระบาทกมรเตงอัญศรีรามราช

|Rammarat II

|-

|Ban Meuang

|File:Phra Ruang.jpg

|Pho Khun Ban Mueang
พ่อขุนบานเมือง

|Ban Mueang II

|-

|Inthrabodinthrathit

|File:พ่อขุนศรีอินทราทิตย์.jpg

|Kamonteng Ansi Inthrabodinthrathit
กมรเตงอัญศรีอินทรบดินทราทิตย์

|Inthrabodinthrathit II

|}

See also

{{commons category|Monarchs of Thailand}}

Notes

{{notelist|refs=

}}

References

{{reflist}}

Bibliography

  • {{cite book

| last = Prince Chula Chakrabongse

| first = HRH

| author-link =

| title = Lords of Life: A History of the Kings of Thailand

| publisher = Alvin Redman Limited

| year = 1967

| location = United Kingdom

| isbn =}}

  • {{cite book

| last = Prince Damrong Rajanubhab

| first = Disuankumaan

| title = Our Wars With The Burmese: Thai-Burmese Conflict 1539-1767

| publisher = White Lotus Co. Ltd.

| date = 2001

| location = Thailand

| pages =

| isbn =974-7534-58-4 }}

  • {{cite book

|last = Princess Maha Chakri Sirindhorn Foundation

|author-link = Sirindhorn

|title = Directory of Thai kings (Thai: นามานุกรมพระมหากษัตริย์ไทย)

|url = http://www.sac.or.th/main/pdf/Thai_king_directories.pdf

|access-date = 8 January 2012

|publisher = www.nanmeebooks.com

|year = 2011

|location = Thailand

|isbn = 978-616-7308-25-8

|archive-url = https://web.archive.org/web/20120304072652/http://www.sac.or.th/main/pdf/Thai_king_directories.pdf

|archive-date = 4 March 2012

|url-status = dead

}}

  • {{cite web|url=http://www.royin.go.th/th/knowledge/detail.php?ID=968 |title=Chronology of the Kings of Ayutthaya |author=Royal Institute of Thailand |date=2002 |access-date=8 January 2012 |url-status=dead |archive-url=https://web.archive.org/web/20131203004228/http://www.royin.go.th/th/knowledge/detail.php?ID=968 |archive-date=3 December 2013 }}
  • {{cite book

| last = Wood

| first = William A. R.

| title = History of Siam

| publisher = Chalermit Press

| year = 1924

| location = Thailand

| pages =

| isbn =1-931541-10-8 }}

{{Monarchs of Thailand}}

{{Southeast Asian leaders}}

{{DEFAULTSORT:Thai Monarchs}}

Category:Thai monarchs

Thailand

Thailand

Monarchs