Jeongye Daewongun (Hangul: 전계대원군; Hanja: 全溪大院君; 21 March 1785 – 2 November 1841; lit. 'Grand Internal Prince Jeongye') was a member of the Korean Joseon dynasty as the biological father of King Cheoljong of Joseon. His personal name was Yi Gwang (hangul: 이광; hanja: 李㼅), but he was also known as Kwae-deuk (hangul: 쾌득; hanja: 快得) or Hae-dong (hangul: 해동; hanja: 海東).