His uncle MINAMOTO no Akifusa held the position of Udaijin (Minister of the Right) and was progenitor of the Koga-Genji (Minamoto clan), his aunt FUJIWARA no Kenshi (Kataiko) was the consort of Emperor Shirakawa and the mother of Emperor Horikawa.
叔父の源顕房は右大臣で久我源氏の祖、従姉妹の藤原賢子は白河天皇の中宮で堀河天皇の生母。