He sent his third daughter, FUJIWARA no Ishi/Takeko, to the Court as a wife of Emperor Go-Ichijo so that she could become an empress, and he amazed those around him for having 'three empresses from one family.'
後一条天皇には三女の藤原威子を入れて中宮となし、「一家立三后」と驚嘆された。