His line belonged to the Kira clan, a branch family of the Ashikaga clan that was started by MINAMOTO no Yoshikuni, the son of MINAMOTO no Yoshiie, who was from the family of the Seiwa-Genji (the Minamoto clan) and had served as the Chinju-fu shogun (Commander-in-Chief of the Defense of the North) as well as the head of the Kawachi-Genji (the Minamoto clan).
家系は清和源氏の一家系　河内源氏の棟梁　鎮守府将軍源義家の子　源義国を祖とする足利氏の一門　吉良氏。