Later, from the Muromachi period to the early Edo period, both investiture of the crown ｐrincess and princesses came to an end, as a result of which there was a long period in which only the emperor's birth mother became Nyoin.
その後室町時代から江戸時代初期にかけて、立后・内親王宣下が共に途絶え、その結果天皇生母のみが女院となる時代が長く続いた。