Upon hearing of his brother’s “death”, he sought to avenge him against Sir Guyon, but he was “captured” on the way by the enchantress Phaedria. He eventually freed himself and was reunited with his still-living brother.
Guided by the evil magician Archimago, the brothers found Guyon half-conscious and decided to steal his armor. Prince Arthur arrived, challenged the brothers, and killed them both.
The Faerie Queene | Edmund Spenser, 1570-1599