It was said, due to FUJIWARA no Yoshinobu's support, who was the Kogotaifu (Master of the Empress's Household), the Imperial Teishi's child, Imperial Prince Takahito became the Princess's half older brother, Emperor Reizei's younger brother who was heir apparent.
皇后大夫でもあった彼の働きで、禎子内親王所生の尊仁親王は異母兄後冷泉天皇の皇太弟になったといわれる。