"1921-09-29Z"^^ . "Therese (Thoma) Vogl (12 November 1845 \u2013 29 September 1921) was a German operatic soprano, the first Wellgunde in Wagner's Das Rheingold, and the first Sieglinde in his Die Walk\u00FCre."@en . "1921Z"^^ . . "1845-11-12Z"^^ . "1845Z"^^ . "Vogl, Therese"@en . "Singer" .