Hypermnestre

Hypermnestre ("Hypermnestra") is an opera by the French composer Charles-Hubert Gervais, first performed at the Académie Royale de Musique (the Paris Opera) on 3 November 1716. It takes the form of a "tragédie en musique" in a prologue and five acts. The libretto, by Joseph de Lafont, concerns the Greek myth of Hypermnestra. 
Sources.
 Libretto at "Livrets baroques"