Armida, B.206, op. 115

In the royal gardens of Damascus, the call to prayer is heard. Ismen enters with news of the approaching Franks but tries to dissuade the king from an immediate confrontation. He advises sending the king's daughter Armida, who has rejected Ismen's marriage proposal, to sow dissention in the enemy camp. She at first refuses, but when Ismen uses his magic to show her the enemy camp she recognizes Rinald as the knight she has just dreamed of and agrees to undertake the mission.

Armida arrives in the crusaders' camp and meets Rinald, who brings her into the council where she tells them that an uncle has blinded the king, usurped the throne, and chased her into the desert. Rinald urges the Franks to come to her aid at once and proposes he lead the effort. Bohumir, leader of the Franks, prays for guidance and decides they should support Armida, but he will arrange for lots to be drawn to select the expedition's commander. Rinald, too impatient to wait, leaves the camp with Armida. They are caught leaving the Frankish camp by the hermit Peter, but the lovers are aided in their escape by Ismen, who drives a chariot pulled by dragons.

Rinald and Armida are entertained in her garden by sirens and fairies. Ismen disguised as an old man tries to destroy the palace. When he finds his powers no match for Armida's sorcery, he goes to Rinald's companions and claims to be a convert to their Christian faith. Glad to have his help, they accept from him the Archangel Michael's diamond shield, which they use to bring Rinald out of the palace. Armida gives way to grief and the palace collapses.

Rinald asks forgiveness for abandoning his comrades and his mission. As the Crusaders advance on Damascus the battle passes through the camp and Rinald kills Ismen and is then confronted by a knight in black. As they battle one another and Rinald curses Armida's name, the knight drops his sword and is stabbed by Rinald, who only then recognizes his opponent is Armida. He baptises her as she dies in his arms.