皇家戏院 meaning in English

royale theatre
theatre royal

" a thousand thanks , madame , " replied monte cristo " but i have an engagement which i cannot break . i have promised to escort to the acad mie a greek princess of my acquaintance who has never seen your grand opera , and who relies on me to conduct her thither .
“万分感谢，夫人， ”基督山答道， “但我有一个不能失信的约会：我答应要陪一位相识的希腊公主到皇家戏院去，她从来没看过你们那种富丽堂皇的歌剧，要我陪她去见识一下。 ”