Kassya (opera)

Kassya is a French-language opera in 4 acts and 5 tableaux by Léo Delibes to a libretto by Henri Meilhac and Philippe Gille after a novella by Sacher-Masoch. Unfinished on Delibes' death in 1891, it was completed and orchestrated by Jules Massenet in 1893.
The opera was premiered at the Opéra-Comique, Paris, on 24 March 1893, with the following cast:
The opera was respectfully received, but the general view was that it showed the composer's creative gifts in decline. It ran for twelve performances.