Emperor Kazan's mother was FUJIWARA no Kaishi, a daughter of Kaneie's elder brother, the deceased Koretada, whereby Gon Chunagon (a provisional vice-councilor of state) FUJIWARA no Yoshichika, a son of Koretada, governed the Imperial Court by assisting the Emperor.
花山天皇は兼家の亡兄伊尹の娘の藤原懐子を母としており、伊尹の子の権中納言藤原義懐が天皇を補佐して朝政を執った。