Elder half-brother of King Taejo · late-Goryeo general · founder of the Wanpung-daegun branch
| Life | 1330 ~ 1388 |
| Era | 고려 |
| Clan | 전주 이씨 |
Grand Prince Wanpung (Yi Won-gye, 李元桂) was the eldest son of Hwanjo (Yi Ja-chun) and the elder half-brother of King Taejo. As a late-Goryeo general he is credited with fighting the Red Turbans and Japanese raiders.
He died in 1388, before Joseon was founded, and was posthumously titled Grand Prince Wanpung in 1872. His son Yi Cheon-u became a founding merit subject, and his descendants form the Wanpung-daegun branch.
전주 이씨 완풍대군파 — 아들 이천우(조선 개국공신)