When his adopted daughter, FUJIWARA no Genshi (Chugu (Empress) of Emperor Gosuzaku) passed away early, Yorimichi tried his luck on his only daughter and made her go under Judai (marry into the imperial court) to Emperor Goreizei on February 11, 1051 and promoted her to Kisai no miya (Empress) on April 2 of the same year.
特に養女藤原嫄子（後朱雀天皇中宮）が早世した後は、頼通はこの一人娘に皇太子誕生の命運を賭けて永承5年（1050年）12月22日後冷泉天皇に入内させ、さらに翌年2月13日、皇后宮に冊立する。