Following the death of Emperor Gosanjo, who had abdicated only five years after his enthronement, Imperial Princess Keishi spent her remaining years in the Sai-in as a priestess called "Empress Sai-in."
後三条天皇が在位5年足らずで退位の後他界してからは、落飾した馨子内親王は西院で余生を送り「西院皇后」と称された。