Iphigénie en Tauride (English: Iphigeneia in Tauris) is an opera by the French composers Henri Desmarets and André Campra. It takes the form of a tragédie en musique in a prologue and five acts. The libretto is by Joseph-François Duché de Vancy with additions by Antoine Danchet. Desmarets had begun work on the opera around 1696 but abandoned it when he was forced to go into exile in 1699. Campra and his regular librettist Danchet took up the piece and wrote the prologue, most of Act Five, two arias in Act One, an aria for Acts Two and Three, and two arias for the fourth act. The plot is ultimately based on Euripides' tragedy Iphigeneia in Tauris. Source: Wikipedia (en)