The illegitimate eldest son of Yoshiuji ASHIKAGA (the third family head of the Ashikaga clan), Osauji KIRA, and his younger brother Yoshitsugu KIRA established the Kira clan.
足利義氏(足利家3代目当主)の庶子長男　吉良長氏及びその弟　吉良義継より出る。