Minamoto no Yorimitsu was a member of the Seiwa-Genji, who were descendants of Imperial Prince Sadazumi, Emperor Seiwa's son, and the descendants of Minamoto no Yorimitsu, who belonged to the Settsu-Genji, were the Toki clan.
清和天皇の皇子貞純親王の裔清和源氏の1人、攝津源氏である源頼光の子孫が土岐氏である。