Seongjong, personal name Yi Hyeol, was the ninth monarch of Joseon. The younger son of Crown Prince Uigyeong and a grandson of King Sejo, he ascended to the throne upon the death of his sickly uncle, King Yejong.
- Occupation
- monarch
- Position held
- king of Joseon Dynasty
- Citizenship
- Joseon
- Born
- July 30, 1457, August 19, 1457
- Died
- December 24, 1494, January 19, 1495
