|Book(s)||The World of Ice and Fire (mentioned)|
Walter fought for the first Vulture King during the reign of King Aenys I. During the Vulture Hunt, at the battle at Stonehelm, Walter was captured by Lord Orys Baratheon. Walter's father had chopped off Ory's sword hand during the First Dornish War, and in retaliation Orys chopped off Walter's sword hand, then his other hand, followed by both feet. He deemed this "usury".