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| Yi Cha-ch'un 이자춘 李子春 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| King of Joseon (posthumously) | |||||||||
| Darugachi | |||||||||
| Reign | 1343–1356 | ||||||||
| Born | 20 January 1315 Aldong, Ssangseong Prefecture, Yuan dynasty | ||||||||
| Died | 3 June 1361 (aged 46) Gwiju-dong, Hamheung-bu, Dongbuk-myeon, Goryeo | ||||||||
| Burial | |||||||||
| Spouse | Lady Yi Queen Uihye | ||||||||
| Issue | 5 sons and 1 daughter | ||||||||
| |||||||||
| House | Jeonju Yi | ||||||||
| Father | Yi Chun | ||||||||
| Mother | Lady Bak of the Munju Bak clan | ||||||||
Yi Cha-ch'un (Korean: 이자춘; Hanja: 李子春; 20 January 1315 – 3 June 1361) or known by his Mongolian name Ulus Bukha (Korean: 울루스부카; Hanja: 吾魯思不花), was a minor military officer of the Yuan Empire who later transferred his allegiance to Goryeo and became the father of Yi Sŏng-gye, founder of the Joseon Dynasty.