Duke Yangyang

Wang Sŏ, known by his title of Marquess Deokyang and later Duke Yangyang, was a Goryeo Royal Prince as the second son of King Sinjong and Queen Seonjeong, also the only younger brother of King Huijong. Through his third son, he would eventually become an ancestor of King Gongyang. In 1204, his father visited his manor, but died there not long after that. In 1211, he was exiled alongside Huijong by Ch'oe Ch'ung-hŏn to Ganghwa Island.

Close relatives

 * Older brother: Wang Yŏng, King Huijong
 * Sister-in-law: Queen Seongpyeong of the Jangheung Im clan
 * Nephew: Duke Changwon
 * Nephew: Marquess Siryeong
 * Nephew: Duke Gyeongwon
 * Nephew: Grand Priest Wonjeong
 * Nephew: Grand Priest Chungmyeong
 * Niece: Queen Anhye
 * Niece: Princess Yeongchang
 * Niece: Princess Deokchang
 * Niece: Princess Gasun
 * Niece: Princess Jeonghui
 * Younger sister: Princess Heungdeok
 * Younger sister: Princess Gyeongnyeong
 * Issue:
 * 1) Wang Wi (d. 1216)
 * 2) Wang Pyŏng
 * 3) Wang In, Duke Sian (d. 1275)
 * 4) Wang Hŭi, Duke Yeongan (d. 1263)
 * 5) Lady Wang of the Kaesong Wang clan

Descendants
Both of his eldest son and youngest son had no children. The descendants of his second and third sons were:
 * From second son, Wang Pyŏng:
 * Wang Hu
 * Wang Yu
 * Wang Hŭi
 * From third son, Wang In, Duke Sian:
 * Wang Chŏng
 * Princess Jeongsin of the Kaesong Wang clan (regnal name Jeonghwa), first wife of King Chungnyeol
 * Wang Yŏng, Marquess Seowon and Duke Yeongheon, married Lady Sunan of Byeonhan State of the Hwangbo clan
 * Royal Consort Jeongbi of the Kaeseong Wang clan, third wife of King Chungseon of Goryeo
 * Wang Pun, Marquess Ikyang, married Lady Janggyeong of Jinhan State of the Miryang Park clan
 * Wang Chŏn, Prince Seoheung
 * Wang Wŏn