Her father, Sanesuke, was born in 957, meaning he was over 50 when his long awaited daughter was born, and as such he doted on her enormously.
父親の実資は天徳(日本)元年（957年）生まれであることから、50歳過ぎにして漸く出来た娘ということになり、非常にこれを溺愛した。