Andrew Harclay, 1st Earl of Carlisle the Scots, under the command of Robert the Bruce, at the Battle of Old Byland in Yorkshire. The English commander, John of Brittany, Earl of Richmond, was taken prisoner, while the king himself barely escaped capture. It was the worst defeat the English had suffered in the wars since the Battle of Bannockburn in 1314. Harclay had received a summons to join the royal army, but had not been able to bring his troops south in time to come to the king's rescue. The event convinced him that the war against Scotland could not be won under the leadership of
Robert the Bruce by the English Knight Sir Henry de Bohun. Riding with the heavy cavalry, de Bohun caught sight of Bruce, who was armed only with his battle-axe. De Bohun lowered his lance and charged, and Bruce stood his ground. At the last moment, Bruce swiftly dodged the lance, raised in his saddle, and with one mighty swing of his axe, struck Bohun so hard that he split his iron helmet, and his head in two, a blow so powerful that it shattered the very weapon into pieces. Afterwards the King merely expressed regret that he had broken the shaft of his