John III Doukas Vatatzes
{{Short description|Emperor of Nicaea from 1221 to 1254}}
{{Redirect|John Vatatzes}}
{{Not to be confused with|John III of Constantinople}}
{{Use dmy dates|date=January 2024}}
{{Infobox royalty
| name = John III Doukas Vatatzes
| full name = John Doukas Vatatzes
{{lang|grc|Ἰωάννης Δούκας Βατάτζης}}
| image = 149 - John III Doukas Vatatzes (Mutinensis - color).png
| caption = 15th-century portrait of John III (from a 15th-century codex containing a copy of the Extracts of History by Joannes Zonaras)
| succession = Emperor of Nicaea
Claimant Byzantine Emperor
| reign = December 1221 –
3 November 1254
| predecessor = Theodore I Laskaris
| successor = Theodore II Laskaris
| spouses = Irene Laskarina
Anna of Hohenstaufen
| issue = Theodore II Laskaris
| house = Vatatzes
| father = Basil Vatatzes (?)
| mother = ... Angelina (?)
| birth_date = {{circa}} 1192
| birth_place = Didymoteicho, Byzantine Empire
| death_date = 3 November 1254 (aged 62)
| death_place = Nymphaion, Byzantine Empire
| place of burial = Monastery of Sosandra, region of Magnesia
| religion = Eastern Orthodox
| title = Emperor and Autocrat of the Romans
}}
John III Doukas Vatatzes, Latinized as Ducas Vatatzes ({{langx|el|Ἰωάννης Γ´ Δούκας Βατάτζης|Iōánnēs Doúkās Vatatzēs}}; {{circa}} 1192 – 3 November 1254), was Emperor of Nicaea from 1221 to 1254. He was succeeded by his son, known as Theodore II Laskaris.
Life
John Doukas Vatatzes, born in about 1192 in Didymoteicho, was probably{{sfn|Polemis|1968|p=107}}{{sfn|Varzos|1984|pp=855–856 (note 20)}} the son of the general Basil Vatatzes, who was killed in battle in 1194, and his wife, a cousin of the Emperors Isaac II Angelos and Alexios III Angelos.{{sfn|Varzos|1984|pp=852–854}} John Doukas Vatatzes had two older brothers. The eldest was Isaac Doukas Vatatzes (1188-1261), while his younger brother died young. Through his marriage to Eudokia Angelina he fathered Theodora Doukaina Vatatzaina, who later married Michael VIII Palaiologos. The middle brother's name is unknown, but his daughter married the protovestiarios Alexios Raoul.{{sfn|Varzos|1984|pp=855–857}}{{sfn|Polemis|1968|pp=107–109}}
A successful soldier from a military family, John had risen to the position of protovestiarites when he was chosen in about 1216 by Emperor Theodore I Laskaris as the second husband for his daughter Irene Laskarina, following the death of her first husband, Andronikos Palaiologos.{{sfn|Angelov|2019|p=33}} As husband of Laskaris' firstborn, who had no son of his own, John may have been the de facto heir to the throne, however the question of succession was left open; Laskaris may have hoped his own marriage to Maria of Courtenay in 1219 would produce a male heir.{{sfn|Angelov|2019|p=33}} As a result, when John III became emperor in December 1221,{{efn|
Jean Darrouzès dated the coronation of John III to {{circa}} 15 December.{{Cite journal|last=Darrouzès|first=Jean|date=1978|title=Peter Schreiner, Die byzantinischen Kleinchroniken. II|language=fr|journal=Revue des études byzantines|volume=36|pages=276–77}} However, as Dimiter Angelov points out, "the logic of his calculations is questionable".{{sfn|Angelov|2019|p=256}} George Akropolites notes that he was still "completing his thirty-third year" at the time of his death, which is corroborated by another source that gives him a reign of 32 years and 11 months.{{sfn|Angelov|2019|p=256}} Another chronicle states that he reigned 18 years and 3½ months from 1221 to 1 March 1239 (actually 1240). This should give mid-November 1221, but Darrouzès dates it to "around 15 December".}} following Theodore I's death in November,Judith Herrin, Guillaume Saint-Guillain.
[https://books.google.com/books?id=p_mazcfdpVIC&pg=PA52 Identities and Allegiances in the Eastern Mediterranean After 1204]. Ashgate Publishing, Ltd., 2011 {{ISBN|1409410986}} p 52{{cite book | first=John | last=Carr | url=https://books.google.com/books?id=OZOSBwAAQBAJ&pg=PA225 | title=Fighting Emperors of Byzantium | publisher=Pen and Sword | date=30 April 2015 | isbn=978-1473856400 | page=255}} he had to suppress opposition to his rule by Laskaris' brothers, Alexios and Isaac. The struggle ended with the Battle of Poimanenon in 1224, in which his opponents were defeated in spite of support from the Latin Empire of Constantinople. John III's victory led to territorial concessions by the Latin Empire in 1225, followed by John's incursion into Europe, where he seized Adrianople.{{sfn|Treadgold|1997|pp=719–721}}
John III's possession of Adrianople was terminated by Theodore Komnenos Doukas of Epirus and Thessalonica, who drove the Nicaean garrison out of Adrianople and annexed much of Thrace in 1227. The elimination of Theodore by Ivan Asen II of Bulgaria in 1230 put an end to the danger posed by Thessalonica, and John III made an alliance with Bulgaria against the Latin Empire.{{sfn|Treadgold|1997|pp=722–724}}
File:JohnIIIVatatzesGoldHyperpyronMagnesia.jpg of John III Vatatzes]]
In 1235 this alliance resulted in the restoration of the Bulgarian patriarchate and the marriage between Elena of Bulgaria and Theodore II, respectively Ivan Asen II's daughter and John III's son. In that same year, the Bulgarians and Nicaeans campaigned against the Latin Empire, and in 1236 they attempted a siege of Constantinople.{{sfn|Treadgold|1997|pp=722–724}} Subsequently, Ivan Asen II adopted an ambivalent policy, effectively becoming neutral, and leaving John III to his own devices.
John III Vatatzes was greatly interested in the collection and copying of manuscripts, and William of Rubruck reports that he owned a copy of the missing books from Ovid's Fasti.Christopher S. Wood, Forgery, Replica, Fiction: Temporalities of German Renaissance Art. University of Chicago Press, 2008 Rubruck was critical of the Hellenic traditions he encountered in the Empire of Nicaea, specifically the feast day for Saint Felicity favored by John Vatatzes, which Friedrich Risch suggests would have been the Felicitanalia, practiced by Sulla to venerate Felicitas in the 1st century with an emphasis on inverting social norms, extolling truth and beauty, reciting profane and satirical verse and wearing ornamented "cenatoria", or dinner robes during the day.Geschichte der Mongolen und Reisebericht, 1245–1247. (Trans. and ed., Friedrich Risch.). Leipzig: E. Pfeiffer, 1930, p. 174, n.34
In spite of some reverses against the Latin Empire in 1240, John III was able to take advantage of Ivan Asen II's death in 1241 to impose his own suzerainty over Thessalonica (in 1242), and later to annex this city, as well as much of Bulgarian Thrace in 1246.{{sfn|Treadgold|1997|p=728}} By 1247 he had established an effective stranglehold on Constantinople. In the last years of his reign Nicaean authority extended far to the west, where John III attempted to contain the expansion of Epirus. Michael's allies Golem of Kruja and Theodore Petraliphas defected to John III in 1252.{{cite book|first1=Steven G. |last1=Ellis|first2=Lud'a|last2=Klusáková|title=Imagining Frontiers, Contesting Identities|url=https://books.google.com/books?id=3zXFCs9EfEYC&pg=PA134|year=2007|publisher=Edizioni Plus|isbn=978-88-8492-466-7|pages=134–}}{{cite book|title=George Akropolites: The History: Introduction, translation and commentary|url=https://books.google.com/books?id=v_0LdWboHXwC&pg=PA73|date=19 April 2007|publisher=OUP Oxford|isbn=978-0-19-921067-1|pages=73–|quote=Goulamos defected to the Emperor}}
John III died in Nymphaion in 1254, and was buried in the monastery of Sosandra, which he had founded, in the region of Magnesia.Michael Borgolte, Bernd Schneidmüller. [https://books.google.com/books?id=tDbnBQAAQBAJ&pg=PA73 Hybride Kulturen im mittelalterlichen Europa/Hybride Cultures in Medieval Europe]. Oldenbourg Verlag, 1 okt. 2010 {{ISBN|3050049669}} p 73
Alliance with Frederick II
File:Mitteleuropa zur Zeit der Staufer.svg
In an attempt to save the ailing Latin empire after the joint Nicaean-Bulgarian siege of Constantinople in 1236, pope Gregory IX called for a crusade against Nicaea and wrote to John III in 1237 informing him of the impending crusader army.{{sfn|Angelov|2019|p=89}} In the face of Bulgarian neutrality, John III sought allies elsewhere, turning to the Holy Roman Emperor Frederick II von Hohenstaufen.{{sfn|Angelov|2019|pp=75, 89}} Frederick II was a hated enemy of the papacy, having already been excomunnicated by Gregory IX in 1227, and in a letter composed sometime before his second excommunication in 1239, Frederick II wrote to John III lamenting the power of the pope in the west and praising John III for the power of the Byzantine emperor over the clergy.{{sfn|Angelov|2019|pp=88–89}}
Warm relations between the two Roman empires had already begun after the Sixth Crusade (1228-1229), undertook by Frederick II to lift his first excommunication, when Frederick II received a Nicaean embassy bringing gold coins, gold-embroidered silk and horses among other gifts.{{sfn|Angelov|2019|p=89}} By 1238, the two emperors had concluded an alliance. Frederick II agreed to recognize John III as the legitimate Byzantine emperor, albeit with the title "Emperor of the Greeks"{{sfn|Angelov|2019|p=206}} (Grecorum imperator / Γραικῶν βασιλεύς), in exchange for mutual aid. That same year, John III sent Nicaean troops to participate in the Siege of Brescia and Frederick II forestalled Gregory IX's crusade headed by the Latin emperor Baldwin II in north Italy, forcing the crusaders to eventually take the overland route to Constantinople in 1239.{{sfn|Angelov|2019|pp=89–90}}
In early 1240, John III's wife Irene Lascarina died, and later that year John III married Frederick II's 10 year old daughter Constance II of Hohenstaufen to cement their alliance, who took the Greek name Anna.{{sfn|Angelov|2019|p=90}} Despite the lack of children from the marriage and John III's affair with his wife's lady-in-waiting, the alliance between the two emperors continued until Frederick II's death in 1250.
After Gregory IX's death in 1241, the new pope Innocent IV continued the policies of his predecessor, and attempted to wage war on both emperors. At the Council of Lyon in 1245, Frederick was deposed as emperor and excommunicated, for, among a multitude of other reasons, marrying his daughter to John III who was called by Innocent IV "that enemy of God and the church."[https://web.archive.org/web/20120510045457/http://www.piar.hu/councils/ecum13.htm#Bull#Bull Papal bull of excommunication of Frederick II] In the east, the pope called for another crusade against John III and entered into negotiations with the Mongols to invade Nicaea, but both efforts were unsuccessful.{{sfn|Angelov|2019|pp=95, 135}} In the west, Innocent IV was much more successful against Frederick II, defeating the imperial army at the Battle of Parma in 1248.{{sfn|Angelov|2019|p=135}} John III continued to send troops, including archers and infantryman, and subsidies to Italy via Epirus between 1247 and 1250 to aid his father-in-law, who finally triumphed over the papacy in the Battle of Cingoli in August 1250, however Frederick died of dysentery in December the same year.{{sfn|Angelov|2019|pp=135–136}}
After Frederick II's death, diplomatic activity briefly continued between the two empires, with John III's son Theodore II Doukas Laskaris delivering a memorial speech in which he admired Frederick II's struggle against the hostility of the western aristocracy and clergy.{{sfn|Angelov|2019|p=136}} Frederick's son and successor Conrad IV sent an embassy to Nicaea in 1253 in order to return Constance-Anna's exiled family back to Italy, but Conrad IV and John III's deaths in 1254 ensured that a possible continuation of the imperial alliance never ensued; after Conrad's IV death, the Holy Roman Empire and the Kingdom of Sicily were divided.{{sfn|Angelov|2019|p=139–141}} Frederick's other son Manfred, the last Hohenstaufen king of Sicily, was to prove hostile to the Nicaean cause, invading Nicaea's Albanian coast in 1257 and allying with Michael II Komnenos Doukas against Nicaea in 1259, providing troops for the Battle of Pelagonia.{{sfn|Angelov|2019|p=176}} After the Nicaean victory, Michael VIII Palaiologos attempted to marry the widowed Constance-Anna, who had remained at the Nicaean court during the reigns of her stepson and stepgrandson, in order to secure an alliance with Manfred. However, Constance-Anna refused and moved to her brother's court in Sicily in 1261, thus severing all ties with Byzantium and formally ending the alliance started by John III and Frederick II.{{sfn|Angelov|2019|p=226–227}}
Family
John III Doukas Vatatzes married first Irene Lascarina, the daughter of his predecessor Theodore I Laskaris in 1212. They had one son, the future Theodore II Doukas Laskaris. Irene fell from a horse and was so badly injured that she was unable to have any more children.
Irene retired to a convent, taking the monastic name Eugenia, and died there in summer of 1240.{{citation|arxiv=2012.00976|title=Cometary records revise Eastern Mediterranean chronology around 1240 CE|year=2021|doi=10.1093/pasj/psaa114|last1=Murata|first1=Koji|last2=Ichikawa|first2=Kohei|last3=Fujii|first3=Yuri I.|last4=Hayakawa|first4=Hisashi|last5=Cheng|first5=Yongchao|last6=Kawamoto|first6=Yukiko|last7=Sano|first7=Hidetoshi|journal=Publications of the Astronomical Society of Japan|volume=73|issue=1 |pages=197–204}} John III married as his second wife Constance II of Hohenstaufen, an illegitimate daughter of Emperor Frederick II by his mistress Bianca Lancia. They had no children.
Legacy
{{Infobox saint
| honorific_prefix = Saint
|name = John Vatatzes the Merciful, Emperor of the Romans
|death_date =
|feast_day = 4 November
|venerated_in = Eastern Orthodox Church
|image = St. John Vatatze the Merciful.jpg
|imagesize =
|caption = St. John Vatatzes the Merciful King, Emperor of Nicaea and "the Father of the Greeks."
|birth_place =
|death_place =
|titles = Emperor
|beatified_date=
|beatified_place=
|beatified_by=
|canonized_date=
|canonized_place=
|canonized_by=
|attributes = Imperial Vestment
|patronage =
|major_shrine = Didymoteicho, Western Thrace and Nymphaion (Ionia) modern-day Kemalpaşa, Turkey
|issues=
|prayer=
|prayer_attrib=
}}
John III Doukas Vatatzes was a successful ruler who laid the groundwork for Nicaea's recovery of Constantinople. He was successful in maintaining generally peaceful relations with his most powerful neighbors, Bulgaria and the Sultanate of Rum, and his network of diplomatic relations extended to the Holy Roman Empire and the Papacy. Among the armed forces he used were the large Cuman communities he had settled to guard Western Anatolia against invasions by Oghuz-Turkmens.{{Cite book |last= |title=Konstantinopolis'te Türkler (11.-15. Yüzyıllar) |pages=http://books.openedition.org/ifeagd/1706}}{{Cite web |title=İznik İmparatorluğu (Nicaea) Tarihi |date=22 May 2020 |url=https://ozhanozturk.com/2020/05/22/iznik-imparatorlugu-nicaea-tarihi/}}{{Cite journal |date=11 October 2022 |title=BATI ANADOLU'DAKİ TÜRK YAYILIŞINA KARŞI BİZANS İMPARATORLUĞU'NUN KUMAN-ALAN TOPLULUKLARINI BALKANLARDAN ANADOLU'YA NAKLETMESİ |url=https://dergipark.org.tr/en/download/article-file/1267764 |journal=}}{{Cite journal |last=Yalvar |first=Cihan |date=25 October 2022 |title=ANADOLU'DA SON TÜRK İSKÂNI: İZNİK İMPARATORLUĞU'NDA KUMAN-KIPÇAKLAR VE YALOVA KAZIMİYE (YORTAN) İLE ELMALIK (SARUHANLI) KÖYLERİNDEKİ VARLIKLARI |url=https://dergipark.org.tr/tr/pub/tda/issue/60394/798906 |journal=Türk Dünyası Araştırmaları|volume=127 |issue=250 |pages=11–36 }}{{Cite journal |last=Korobeinikov |first=Dimitri |date=25 October 2022 |title=İznik İmparatorluğun'da Kumanlar |trans-title=The Cumans in the Empire of Nicaea |url=https://www.academia.edu/5826298 |journal=}}
John III effected Nicaean expansion into Europe, where by the end of his reign he had annexed his former rival Thessalonica and had expanded at the expense of Bulgaria and Epirus. He also expanded Nicaean control over much of the Aegean and annexed the important island of Rhodes,{{sfn|Treadgold|1997|pp=729–730}} while he supported initiatives to free Crete from Venetian occupation aiming toward its re-unification with the Byzantine empire of Nicaea.Agelarakis, P. A. (2012), "Cretans in Byzantine foreign policy and military affairs following the Fourth Crusade", Cretika Chronika, 32, 41–78.
Styling himself the true inheritor of the Roman Empire, John III encouraged justice and charity, and provided active leadership in both peace and war despite his epilepsy. He carefully developed the internal prosperity and commerce of his realm, which became known for bountiful harvest festivals reportedly drawing on traditions from the Felicitas feast days described in the missing 11th book of Ovid's Book of Days.Lars Brownworth, Lost to the West: the Forgotten Byzantine Empire That Rescued Western Civilization. Broadway Books, 2010, p 254
A half-century after his death, John III was canonized as a saint, under the name John Vatatzes the Merciful{{Efn|Not to be confused with John the Merciful}} and is commemorated annually on 4 November.Great Synaxaristes: {{in lang|el}} [http://www.synaxarion.gr/gr/sid/1092/sxsaintinfo.aspx Ὁ Ἅγιος Ἰωάννης ὁ Βατατζὴς ὁ ἐλεήμονας βασιλιὰς]. 4 Νοεμβρίου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Ostrogorsky, George. History of the Byzantine State. New Brunswick, N.J: Rutgers University Press, 1969, p. 444. George Akropolites mentions that the people saw to the construction of a temple in his honour in Nymphaeum, and that his cult as a saint quickly spread to the people of western Asia Minor.Banev Guentcho. "[http://asiaminor.ehw.gr/forms/fLemmaBodyExtended.aspx?lemmaID=9275 John III Vatatzes]". Transl. Koutras, Nikolaos. Encyclopaedia of the Hellenic World, Asia Minor (EHW). 16 December 2002. On the same day, since 2010, the Vatatzeia festival is organized at Didymoteicho by the local metropolitan bishop.Lorenzo M. Ciolfi, From Byzantium to the Web: the Endurance of John III Doukas Vatazes’ Legacy. EHESS paris, 2017, p. 64 Alice Gardiner remarked on the persistence of John's cult among the Ionian Greeks as late as the early 20th century, and on the contrast she witnessed where "the clergy and people of Magnesia and the neighbourhood revere his memory every fourth of November. But those who ramble and play about his ruined palace seldom connect it even with his name."Gardiner, The Lascarids of Nicaea: The Story of an Empire in Exile, 1912, (Amsterdam: Adolf M. Hakkert, 1964), p. 196
His feast day is formally an Eastern Orthodox holiday, although it is not commemorated with any special liturgy; there are two known historical akolouthiai for him, including an 1874 copy of an older Magnesian menaion for the month of November, which shows that in the 15th and 16th century, he was venerated as "the holy glorious equal of the Apostles and emperor John Vatatzes, the new almsgiver in Magnesia."Polemis Demetrios, "Remains of an acoluthia for the emperor John Ducas Vatatzes" in C. Mango & O. Pritsak (eds.), Okeanos. Essays Presented to Ihor Sevcenko on His Sixtieth Birthday by His Colleagues and Students. Ukrainian Research Institute, Harvard University, 1983 The relevant hymns are preserved in only one known manuscript in the library of the Leimonos monastery on Lesbos, Greece, and include references to the feast day for the almsgiver John Vatatzes.Polemis, p.584 John III Vatatzes' feast day has largely fallen out of favor other than in the church dedicated to him in his birth city of Didymoteicho.Lorenzo M. Ciolfi, "John III Vatazes, Byzantine imperial saint?" BULLETIN OF BRITISH BYZANTINE STUDIES, 2014
The generations after John Vatatzes looked back upon him as "the Father of the Greeks."A. A. Vasiliev. History of the Byzantine Empire. Vol. 2. University of Wisconsin Press, 1971. pp. 531–534.{{efn|"Apostolos Vacalopoulos notes that John III Ducas Vatatzes was prepared to use the words 'nation' (genos), 'Hellene' and 'Hellas' together in his correspondence with the Pope. John acknowledged that he was Greek, although bearing the title Emperor of the Romans: "the Greeks are the only heirs and successors of Constantine", he wrote. In similar fashion John’s son Theodore II, acc. 1254, who took some interest in the physical heritage of Antiquity, was prepared to refer to his whole Euro-Asian realm as "Hellas" and a "Hellenic dominion". (What Vacalopoulos does not examine is whether, like the Latins, they also called their Aegean world 'Roman-ia')."Michael O'Rourke. [https://www.scribd.com/doc/30421469/Byzantium-1220-to-1330 Byzantium: From Recovery to Ruin, A Detailed Chronology: AD 1220–1331]. Comp. by Michael O'Rourke. Canberra, Australia, April 2010.}}
Prophecy of the Reposed King
According to some, his incorrupt relics were transferred to Constantinople, which had been liberated from the Franks, where the legend of the reposed King became associated with him. At the time of the fall of Constantinople to the Ottoman Turks, his relics were hidden in a catacomb, and were guarded by a family of Crypto-Christians, which kept them secret from generation to generation. A prophecy states that since that time, he has been awaiting the liberation of Constantinople.{{in lang|el}} Ιωάννα Κατσούλα. [http://www.orthodoxia.gr/show.cfm?id=1630&obcatid=3 ΑΓΙΟΣ ΙΩΑΝΝΗΣ Ο ΒΑΤΑΤΖΗΣ: Ο μαρμαρωμένος ελεήμων βασιλιάς και η βασιλεύουσα] {{Webarchive|url=https://web.archive.org/web/20191103095655/http://www.orthodoxia.gr/show.cfm?id=1630&obcatid=3 |date=3 November 2019 }}. ΜΗΝΙΑΙΑ ΟΡΘΟΔΟΞΗ ΕΚΚΛΗΣΙΑΣΤΙΚΗ ΕΦΗΜΕΡΙΔΑ – «Στύλος Ορθοδοξίας». ΝΟΕΜΒΡΙΟΣ 2011. Retrieved 9 February 2018.
See also
{{portal|Byzantine Empire}}
Notes
{{notelist}}
References
{{Reflist|30em}}
Sources
- {{cite book|last=Angelov|first=Dimiter|year=2019|title=The Byzantine Hellene: The Life of Emperor Theodore Laskaris and Byzantium in the Thirteenth Century|publisher=Cambridge University Press|isbn=978-1-108-48071-0}}
- {{The Late Medieval Balkans}}
- Jonathan Harris, Byzantium and the Crusades, London: Bloomsbury, 2nd edition, 2014. {{ISBN|978-1-78093-767-0}}
- John S. Langdon. Byzantium’s Last Imperial Offensive in Asia Minor: The Documentary Evidence for and Hagiographical Lore About John III Ducas Vatatzes' Crusade Against the Turks, 1222 or 1225 to 1231. New Rochelle, N.Y.: A.D. Caratzas, 1992.
- {{Oxford Dictionary of Byzantium}}
- {{cite book|last=Macrides|first=Ruth|title=George Akropolites: The History – Introduction, Translation and Commentary|location=Oxford|publisher=Oxford University Press|year=2007|isbn=978-0-19-921067-1|url=https://books.google.com/books?id=v_0LdWboHXwC}}
- George Ostrogorsky. History of the Byzantine State. New Brunswick, N.J: Rutgers University Press, 1969.
- {{cite book|last=Polemis|first=Demetrios I.|title=The Doukai: A Contribution to Byzantine Prosopography|location=London|publisher=The Athlone Press|year=1968|url=https://books.google.com/books?id=Sx5dAAAAIAAJ}}
- {{A History of the Byzantine State and Society}}
- {{Η Γενεαλογία των Κομνηνών | volume=B }}
External links
- {{Cite EB1911 |wstitle=John III (Roman emperor) |display=John III. |volume=15 |page=438}}
- {{Commons category-inline|Ioannes III Vatatzes|John III Doukas Vatatzes}}
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{{s-hou|Laskarid dynasty|unknown|1192|3 November|1254}}
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{{s-bef|before=Theodore I Komnenos Laskaris}}
{{s-ttl|title=Emperor of Nicaea|years=1221–1254}}
{{s-aft|after=Theodore II Doukas Laskaris}}
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{{Roman Emperors}}
{{Authority control}}
{{DEFAULTSORT:Vatatzes, John 03 Doukas}}
Category:13th-century Byzantine emperors
Category:13th-century Greek people
Category:13th-century Christian saints
Category:Byzantine saints of the Eastern Orthodox Church
Category:People from Didymoteicho