| Yi Je 이제 | |
|---|---|
| Crown Prince of Joseon | |
| Tenure | 6 August 1404 – 3 June 1418[1] |
| Predecessor | Crown Prince Yi Bang-won |
| Successor | Crown Prince Yi Do |
| Born | 1394 Hanseong, Joseon |
| Died | October 8, 1462 (aged 67–68) |
| Burial | |
| Wife | Princess Consort Suseong of the Gwangsan Kim clan |
| Clan | Jeonju Yi clan |
| Dynasty | House of Yi |
| Father | Taejong of Joseon |
| Mother | Queen Wongyeong of the Yeoheung Min clan |
| Religion | Neo-confucianism |
| Korean name | |
| Hangul | 양녕대군 |
|---|---|
| Hanja | |
| Revised Romanization | Yangnyeong Daegun |
| McCune–Reischauer | Yangnyŏng Taegun |
| Birth name | |
| Hangul | 이제 |
| Hanja | |
| Revised Romanization | Yi Je |
| McCune–Reischauer | Yi Che |
| Courtesy name | |
| Hangul | 후백 |
| Hanja | |
| Revised Romanization | Hubaek |
| McCune–Reischauer | Hubaek |
| Posthumous name | |
| Hangul | 강정 |
| Hanja | |
| Revised Romanization | Gangjeong |
| McCune–Reischauer | Kangjŏng |
Grand Prince Yangnyeong (Korean: 양녕대군; Hanja: 讓寧大君; 1394 – 8 October 1462[2]) was the former Crown Prince of the Korean Joseon Dynasty. He was the first son of King Taejong and his wife, Queen Wongyeong. Yangnyeong was the elder brother of Sejong the Great, and an ancestor of Syngman Rhee[citation needed], an independence activist and the first President of South Korea.