Il ritorno d'Ulisse in patria (SV 325, The Return of Ulysses to his Homeland) is an opera in a prologue and five acts (later revised to three), set by Claudio Monteverdi to a libretto by Giacomo Badoaro. The opera was first performed at the Teatro Santi Giovanni e Paolo in Venice during the 1639–1640 carnival season. The story, taken from the second half of Homer's Odyssey, tells how constancy and virtue are ultimately rewarded, treachery and deception overcome. After his long journey home from the Trojan Wars Ulisse, king of Ithaca, finally returns to his kingdom where he finds that a trio of villainous suitors have seized the realm and are importuning his faithful queen, Penelope. With the assistance of the gods, his son Telemaco and a staunch friend Eumete, Ulisse vanquishes the suitors and recovers his kingdom. Il ritorno is the first of three full-length works which Monteverdi wrote for the burgeoning Venetian opera industry during the last five years of his life. Together with Monteverdi's other Venetian stage works, it is considered one of the first modern operas. Its music, while showing the influence of earlier works, also demonstrates Monteverdi's development as a composer of opera, through his use of fashionable forms such as arioso, duet and ensemble alongside the older-style recitative. By using a variety of musical styles, Monteverdi is able to express the feelings and emotions of a great range of characters, divine and human, through their music.