Lord of the Iron Islands during the reign of Aerys I Targaryen and the last Greyjoy to sail the Old Way in earnest before his great-grandson Balon revived it. By 211 AC his longships were burning Little Dosk and the villages of Fair Isle, carrying off women and gold as far south as the Arbor while the realm was distracted by Daemon II Blackfyre's failed pretense. Lord Beron Stark gathered the North against him; Tybolt Lannister laid keels for an answering fleet. The Targaryen crown never properly punished him, and the ironborn would remember Dagon as the last of their reavers until Balon's rebellion four generations later. Grandfather to Lord Quellon Greyjoy.
