Die Dafne is an opera. Its libretto was written by Martin Opitz and its music was composed by Heinrich Schütz. It has traditionally been regarded as the first German opera, though it has also been proposed more recently that it was in fact a... Wikipedia
Composer: Heinrich Schütz
Librettist: Martin Opitz
First performance: April 13, 1627, Torgau, Torgau, Germany