Yi Un was the last crown prince of the Korean Empire, the head of the former Korean imperial house after 1926, and a lieutenant general in the Imperial Japanese Army. He was the seventh son of Gojong of Korea and the son of Imperial Noble Consort Sunheon.
- Occupation
- military personnel, prince
- Position held
- crown prince of the Korean Empire
- Citizenship
- Korean Empire, Korea under Japanese rule, Empire of Japan, statelessness
- Born
- October 20, 1897
- Died
- May 1, 1970