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empress
推古天皇は日本初の女帝だ。
Emperor Suiko is considered Japan's first empress.
奈良時代には複数の女帝が即位した。
Several empresses were enthroned during the Nara period.
歌劇に登場する女帝は威厳に満ちていた。
The empress who appeared in the opera was full of dignity.