Joseph Kupelwieser
... that Joseph Kupelwieser wrote the libretto for Schubert's Fierrabras, and was later held responsible by the composer for the opera's failure?
... that <b id="mwrg"><a href="./Joseph_Kupelwieser" id="mwrw" rel="mw:WikiLink" title="Joseph Kupelwieser">Joseph Kupelwieser</a></b> wrote the <a href="./Libretto" id="mwsA" rel="mw:WikiLink" title="Libretto">libretto</a> for Schubert's <i id="mwsQ"><a href="./Fierrabras_(opera)" id="mwsg" rel="mw:WikiLink" title="Fierrabras (opera)">Fierrabras</a></i>, and was later held responsible by the composer for the opera's failure?