When Emperor Reizei was the Crown Prince, Kokiden no nyogo (Empress Kokiden) plotted to remove him and help Hachi no Miya to the throne; as a result, he was involved in the conspiracy, and was coming down in the world as the times had changed.
冷泉帝の東宮時代、これを廃し代わりに八の宮を東宮に擁立せんとの弘徽殿女御方の陰謀に加担させられたため、時勢が移るとともに零落していったのである。