At the time of TAKASHINA no Naritada, when his daughter TAKASHINA no Kishi became the legal wife of FUJIWARA no Michitaka and bore a daughter FUJIWARA no Teishi, who later became the chugu (the second consort of an emperor) of Emperor Ichijo, the Takashina clan enjoyed sudden prosperity.
高階成忠の時に、娘・高階貴子が藤原道隆の正室となり一条天皇の中宮・藤原定子を産んでにわかに繁栄する。