Clan Sinclair to St Briavels Castle, and in 1296 he swore fealty to Edward I of England. In 1303 the Battle of Roslin took place where Scots under Henry Sinclair of Rosslyn and the Clan Comyn defeated an English force. The Battle of Loudoun Hill took place in 1307 where Scots under Robert the Bruce, assisted by Henry Sinclair of Rosslyn again defeated the English. The family initially favoured John Balliol's claim to the throne but later it became paramount that they gave their loyalty to Robert the Bruce. The Battle of Bannockburn was fought in 1314, where the Clan Sinclair fought
Scotland in the Late Middle Ages murder of Comyn, at Greyfriars Kirk in Dumfries. Less than seven weeks later, on 25 March Bruce was crowned as king Robert I at Scone. However, Edward's forces overran the country after defeating Bruce's small army at the Battle of Methven. Despite the excommunication of Bruce and his followers by Pope Clement V, his support grew; and by 1314, with the help of leading nobles such as Sir James Douglas and the Earl of Moray, only the castles at Bothwell and Stirling remained under English control. Edward I had died in 1307 and his heir Edward II moved an army