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
noun
abdicated emperor; retired emperor
Historical title for an emperor who has abdicated in favor of a successor. Honorific term used in the context of the Japanese imperial court.
太上天皇は、譲位した天皇に与えられる称号です。
Daijō Tennō is a title given to an emperor who has abdicated.
平安時代には、多くの太上天皇が院政を行った。
During the Heian period, many retired emperors ruled from behind the scenes.