Yi Cheong
| Yi Cheong | |
|---|---|
| Duke Yi 4th generation of Yi Hui line | |
| Reign | 1945–1947 |
| Predecessor | Yi U |
| Successor | None |
| Born | 23 April 1936 Tokyo Villa of Duke Yi U, Tokiwamatsuchō, Shibuya, Tokyo City, Empire of Japan |
| Spouse |
Kim Chae-yeong (m. 1971) |
| House | House of Yi |
| Father | Yi U |
| Mother | Park Chan-ju |
| Yi Cheong | |
| Hangul | 이청 |
|---|---|
| Hanja | 李淸 |
| RR | I Cheong |
| MR | I Ch'ŏng |
Yi Cheong (born 23 April 1936) is a member of the former Imperial Family of Korea and was a Korean-Japanese noble during Korea under Japanese rule in 1945–1947. He is a great-great-grandson of Heungseon Daewongun and the eldest son of Yi U and Park Chan-ju.
The Empire of Japan was defeated during the World War II in 1945; as the result, a new Japanese constitution was revised, in which Japanese nobility status was invalid since 1947, making Yi Cheong lost his nobility titles. He later graduated from Marquette University in the United States. In 2006, based on multiple historical sources including the Journal of the Royal Secretariat, Yi Cheong published a 4-volume compilation about the history of his ancestor, Heungseon Daewongun.