The subject is taken from Gerusalemme Liberata (16:17-23), Torquato Tasso's 1574 romance of the First Crusade. Armida, a beautiful witch, in trying to bring about the Crusaders' undoing, sought revenge on the Christian Prince, Rinaldo, who had previously confounded one of her plots. In abducting Rinaldo, however, Armida fell in love with him and took him to her island, the Fortunate Isle, where, waking, he too fell in love. The present scene depicts the two lovers in her garden: gazing at his own reflection in his mistress' eyes, Rinaldo at the same time holds a mirror to her face. Behind them are two of Rinaldo's companions, Carlo and Ubaldo, sent to recall the crusader from the sorceress.
Another treatment if the subject by Rocca is in the Walters Art Gallery, Baltimore.