He was a half brother by a different mother of FUJIWARA no Kenshi (the legal wife of Emperor Shirakawa), MINAMOTO no Masazane who was a Chancellor of Sate, and MINAMOTO no Shishi (the wife of FUJIWARA no Tadazane).
藤原賢子（白河天皇中宮）・太政大臣源雅実・源師子（藤原忠実室）らの異母弟。