Onshi became Empress Dowager when Daigo died and their son Emperor Suzaku was enthroned, and became Grand Empress Dowager when Emperor Suzaku demised the throne to his maternal half-brother Emperor Murakami, but she was always served by Chugushiki and called chugu throughout the time.
穏子は、醍醐の死去と息子朱雀天皇の即位にともなって皇太后に、さらに朱雀が同母弟の村上天皇に譲位すると太皇太后に転じたが、その間一貫して中宮職に奉仕され、中宮と呼ばれた。