太上天皇 (daijoutennou) Japanese meaning | Kotomora太上天皇
also: だじょうてんのう · たいじょうてんのう · おおきすめらみこと
天皇
に
与
え
られる
称
号
です
。
Daijō Tennō is a title given to an emperor who has abdicated.
During the Heian period, many retired emperors ruled from behind the scenes.