Prince Hyoeun

{{For|the same name "Wang Wŏn"|Chungseon of Goryeo}}

{{Infobox royalty

| name = Prince Hyoeun

| image =

| succession = Prince Dongyang
동양군
東陽君

| reign =

| predecessor = Title established

| successor =Wang Rim – son

| title = Prince of Goryeo

| father =Taejo of Goryeo

| mother =Lady Dongyangwon of the Pyeongsan Yu clan

| spouse =

| issue =#Wang Rim, Prince Dongyang{{cite journal|date=2002|script-title=ko:역사 와 현실|journal=Yŏksa Wa Hyŏnsil |trans-title=History and Reality|url=https://books.google.com/books?id=9RbmAAAAMAAJ&q=%ED%9A%A8%EC%9D%80%ED%83%9C%EC%9E%90|language=ko|pages=153|location=South Korea|issn=1225-6919}}

1. Wang Jeong, Duke Ongyeol{{cite journal|date=2002|script-title=ko:역사 와 현실|journal=Yŏksa Wa Hyŏnsil |trans-title=History and Reality|url=https://books.google.com/books?id=9RbmAAAAMAAJ&q=%ED%9A%A8%EC%9D%80%ED%83%9C%EC%9E%90|language=ko|location=South Korea|issn=1225-6919}}

| birth_name =Wang Wŏn ({{Korean|hangul=왕원|labels=no}})

| birth_date = ??

| birth_place =Kaesong, Goryeo

| death_date =??

| death_place =Kaesong, Goryeo

| place of burial =

| regnal name =

• Prince Dongyang ({{Korean|hangul=동양군|hanja=東陽君|labels=no}})
• Grand Prince Dongyang ({{Korean|hangul=동양대군|hanja=東陽大君|labels=no}})

| posthumous name =

| house =Wang

| religion = Buddhism

|module={{Infobox korean name|child=yes

|hangul= 효은태자

|hanja= {{linktext|孝|隱|太|子}}

|rr=Hyoeun Taeja

|mr=H'yoŭn T'aech'a

|hangulborn=왕원 or 왕숙

|hanjaborn=王垣 or 王肅

|rrborn=Wang Won or Wang Suk

|mrborn=Wang Wŏn or Wang Suk

}}}}

Prince Hyoeun ({{Korean|효은태자|孝隱太子}}), personal name Wang Wŏn ({{Korean|왕원|王垣|labels=no}}) or Wang Suk ({{Korean|왕숙|王肅|labels=no}}), also known by his title Prince Dongyang ({{Korean|동양군|東陽君|labels=no}}) and Grand Prince Dongyang ({{Korean|동양대군|東陽大君|labels=no}}) was a prince of Goryeo.{{Cite web|url=http://db.history.go.kr/KOREA/search/searchResult.do?sort=levelId&dir=ASC&limit=20&page=1&pre_page=1&codeIds=PERIOD-0-3&searchTermImages=%ED%9A%A8%EC%9D%80%ED%83%9C%EC%9E%90&searchKeywordType=BI&searchKeywordMethod=EQ&searchKeyword=%ED%9A%A8%EC%9D%80%ED%83%9C%EC%9E%90&searchKeywordConjunction=AND#searchDetail/kr/kr_090r_0010_0140/3/2/3/r|script-title=ko:태조 왕자 효은태자|website=Goryeosa|language=ko|access-date=June 2, 2021}} He was the youngest son of Taejo of Goryeo and Lady Dongyangwon,{{Cite web|url=http://db.history.go.kr/KOREA/search/searchResult.do?sort=levelId&dir=ASC&limit=20&page=1&pre_page=1&codeIds=PERIOD-0-3&searchTermImages=%ED%9A%A8%EC%9D%80%ED%83%9C%EC%9E%90&searchKeywordType=BI&searchKeywordMethod=EQ&searchKeyword=%ED%9A%A8%EC%9D%80%ED%83%9C%EC%9E%90&searchKeywordConjunction=AND#searchDetail/kr/kr_088_0010_0100/3/0/3/o|script-title=ko:고려시대 史料 Database|website=Goryeosa|access-date=June 2, 2021|language=zh}} and the 15th son of Taejo overall. Through his descendant, Wang Mi ({{korean|hangul=왕미|hanja=王亹|labels=no}}, 1365 – ?), ninety percent of the modern day Kaesong Wang clan trace their lineage to Prince Hyoeun.{{cite journal |last1=Park |first1=Eugene Y. |title=Progeny of the Koryŏ Dynasty: The Kaesŏng Wang in Chosŏn Korea |journal=Seoul Journal of Korean Studies |date=2015 |volume=28 |issue=1 |pages=1–28 |doi=10.1353/seo.2015.0012 |s2cid=143198581 }} He was the first grandson of Yu Tal ({{Korean|hangul=유달|labels=no}}) who served as the Minister of Works ({{Korean|hangul=공부상서|labels=no}}).