Thésée

Thésée (Theseus) is a tragédie en musique, an early type of French opera, in a prologue and five acts with music by Jean-Baptiste Lully and a libretto by Philippe Quinault based on Ovid's Metamorphoses. It was first performed on 11 January 1675 by the Paris Opera for the royal court at the Château de Saint-Germain-en-Laye and was first performed in public in April at the Théâtre du Palais-Royal in Paris.

The plot centres around a love triangle: Egée wants to marry his ward, princess Églé, while the sorceress Médée wishes to marry the young warrior Thésée, but Thésée and Églé love each other. Médée attempts to force the lovers to renounce each other: first by using her magic to bring Églé to a place of torment, then by convincing Egée to have Thésée killed as a potential threat to his reign. But before Thésée can drink the poison he has been given, Egée realises that Thésée is his lost son. He then gives Églé to Thésée. Médée takes vengeance by destroying the festive setting, but the goddess Minerve undoes this.

Mars and Venus and their followers sing the praise of King Louis XIV.

Princess Églé is in love with Thésée and prays for his safe return from battle against rebels who are threatening King Égée of Athens. Égée enters victorious. He tells Églé he is in love with her, despite being betrothed to the sorceress Médée. Égée says he now intends to marry Médée to his son, whom he has hidden away at Troezen and has not seen for years. The Athenians celebrate their victory with a sacrifice to the goddess Minerva.

Médée is in love with Thésée. She agree to let Égée break off their engagement so he can pursue Églé. Égée is jealous of Thésée's popularity with the people of Athens, who want to make him the king's heir because of his bravery in battle. Médée offers to help Thésée, who reveals to her that he is in love with Églé, provoking the sorceress to jealousy.

...
Wikipedia