With his family line starting with FUJIWARA no Otomaro; his father was FUJIWARA no Yukito and his mother was the younger sister of Yoritomo MINAMOTO's maternal grandfather, FUJIWARA no Suenori who held the office of Atsuta daiguji (the highest priest serving at Atsuta Shrine in Owari Province).
家系は藤原南家藤原乙麻呂流で父は藤原行遠、母は源頼朝の外祖父熱田大宮司藤原季範の妹であった。