Her father was the Provisional Master of the Western Capital Offices, MINAMOTO no Moromitsu (a son of the Chief Councillor of State, MINAMOTO no Moroyori) and her mother was Aki, a court lady worked for Goshirakawain.
父は右京権大夫源師光（大納言源師頼の子）、母は後白河院女房安芸。