上皇の英語表記決定、宮内庁　皇嗣は「皇太子」と同じ:社会:中日新聞(CHUNICHI Web)

"Her Majesty the Empress Emerita." is for Empress Michiko.

Did you know 'Emeritus' or 'Emerita'?

Why don't we use 'ex-Emperor' or `ex-Empress`?

Do you care about their names?