. . "Essen Opera" . . . "St\u00E4dtische B\u00FChnen (as the theatre was then known)" . . . . . . . . "1892" . . . "Stadttheater Essen" . "St\u00E4dtische B\u00FChnen Essen" . "Grillo-Theater" . "Schauspiel Essen" . "Opera" . . . "Grillo theater" . "Grillo-Theater" . "Grillo Theater" .