In 1021, she entered into the palace to marry Imperial Prince Atsunaga, a younger brother of the Emperor who was the heir apparent (Emperor Gosuzaku), as an adopted daughter of her elder brother FUJIWARA no Yorimichi.
同5年（1021年）、兄藤原頼通の養子として皇太弟敦良親王（後朱雀天皇）に入内。