Jeongye Daewongun (hangul: ?????, hanja: ?????, March 21, 1785 – November 2, 1841) or Grand Internal Prince Jeongye was a royal family member of the Korean Joseon dynasty, a biological father of 25th King Cheoljong of Joseon also King Cheoljong was his third illegitimate son, also he was illegitimate son of his fathers.
His real name was Yi Kwang (hangul: ??, hanja: ??), his Chinese name was Changgang (hangul: ??, hanja: ??), first real name was Kwae-deuk(hangul: ??, hanja: ??), Hae-dong (hangul: ??, hanja: ??).