When was the composer who wrote the music for Euryanthe born? 
Euryanthe:  Though acknowledged as one of Weber's most important operas, the work is rarely staged because of the weak libretto by Helmina von Chézy (who, incidentally, was also the author of the failed play "Rosamunde", for which Franz Schubert wrote music). Franz Schubert: Franz Peter Schubert (] ; 31 January 179719 November 1828) was an Austrian composer.
i don't know