His family line stretched back to the Shiba clan, one of the Ashikaga family which descended from MINAMOTO no Yoshikuni, a son of MINAMOTO no Yoshiie who was the head of the Kawachi-Genji, one of the Seiwa-Genji family and Chinju-fu shogun (Commander-in-Chief of the Defense of the North).
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　斯波氏。