| The Empress Dowager, "FUJIWARA no Senshi", who was Emperor Ichijo's mother, got a title of Nyoin as Higashi Sanjoin, which started a custom that Ingo was conferred on three Empresses: the Empress, the Empress Dowager, and the Grand Empress Dowager, in the Imperial Court. |
一条天皇の母后である皇太后藤原詮子が東三条院の女院を受けることがきっかけとなり、朝廷では皇后や皇太后、太皇太后などの三后にも、院号を贈ることが慣習化した。 |