Orfeo is an opera in a prologue and five acts by the Italian composer Claudio Monteverdi. The Italian libretto (text), written by Alessandro Striggio, was based on the 10th book of the Metamorphoses by the Roman poet Ovid. The full title of the opera is La Favola d'Orfeo (The Legend of Orpheus). It was among the earliest operas ever composed. It was first performed at the court of the Duke of Mantua on Feb. 24, 1607.