Clan Cumming England. It is likely that Robert Bruce stabbed the Red Comyn at the high altar, and his companions finished the job. Sir Robert Comyn, uncle to the Comyn chief, was killed while defending his nephew. Both the Comyn chief titles as Lord of Badenoch and Earl of Buchan were forfeited to the crown. John Comyn's son, also named John, was defeated by Robert the Bruce in a skirmish. Comyn fled to join the English and was later killed at the Battle of Bannockburn in 1314, fighting for the English, against Bruce. Any hopes of the Comyns returning to power ended
Robert the Bruce planned a major military campaign with the support of Lancaster and the barons, mustering a large army of between 15,000 and 20,000 men. In the spring of 1314, Edward Bruce laid siege to Stirling Castle, a key fortification in Scotland whose governor, Philip de Mowbray, agreed to capitulate if not relieved before 24 June 1314. In March, James Douglas captured Roxburgh, and Randolph captured Edinburgh Castle, while in May, Bruce again raided England and subdued the Isle of Man. News of the agreement regarding Stirling Castle reached the English king in late May, and he decided to speed his march