She is best remembered today for portraying Brang*ne in the world premiere of Richard Wagner 's Tristan und Isolde in 1865 and Helmwige in the premiere of Wagner's Die Walk*re in 1869. Born in Frankfurt am Main, Deinet studied under Elise Seebach before making _her_ professional opera debut at the opera house in Frankfurt as Gabriele in Conradin Kreutzer 's Das Nachtlager in Granada in 1861. <sep>, Pronoun: her <sep>, A: Deinet <sep>, B: Elise Seebach