Ein Feldlager in Schlesien is a Singspiel in three acts by Giacomo Meyerbeer with a German-language libretto by Ludwig Rellstab after Eugène Scribe's Le camp de Silésie. Wikipedia
Librettists: Eugène Scribe, Ludwig Rellstab, and Charlotte Birch-Pfeiffer
First performance: December 7, 1844
Composer: Giacomo Meyerbeer