What opera that Gerd Grochowski performed in was the last of four music dramas?
Gerd Grochowski:  Particularly known for his performances in the operas of Richard Wagner, his roles included Donner in "Das Rheingold", Gunther in "Götterdämmerung", Klingsor in "Parsifal", Kurwenal in "Tristan und Isolde", Telramund in "Lohengrin", and Wotan in "The Ring Cycle". Götterdämmerung: Götterdämmerung ( ; Twilight of the Gods), WWV 86D, is the last in Richard Wagner's cycle of four music dramas titled "Der Ring des Nibelungen " ("The Ring of the Nibelung", or "The Ring" for short).
i don't know