Dragonsbane is a war galley of the royal fleet in service to Stannis Baratheon. It has one hundred oars. It may by named in honor of King Aegon III Targaryen, who was called the Dragonbane, or of King Robert I Baratheon and the victory in his war against House Targaryen.
A Clash of Kings
Dragonsbane is part of Stannis Baratheon's fleet commanded by Ser Imry Florent during the Battle of the Blackwater. It is among the first ships to be hit by burning pitch. its captain drives it between two quays and the crew joins the fight ashore. During the fight, the burning hulks of both fleets jam the mouth of the Blackwater Rush, forming a quasi-bridge from one bank to the other. At the base of the bridge is Dragonsbane.