Question: In what musical era did the composer of Les fêtes de l'Hymen et de l'Amour create his work?
Sentence (from "Les fêtes de l'Hymen et de l'Amour"): The work was first performed on March 15, 1747, at the La Grande Ecurie, Versailles, and is set to a libretto by Louis de Cahusac.
Relevant evidence: No