Roast Beef William was a Detinan officer and a northerner who followed "King" Geoffrey during the Detinan Civil War. Though he did not have an aristocratic background, he rose through the nepotistic northern ranks by his merits. He was a skilled tactician who wrote the training manual used by both sides during the war to train their troops. He was also a rather gluttonous man who was fond of very rare beef and could eat quite a lot of it in one sitting.