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
Robert the Bruce north from Berwick to relieve the castle. Robert, with between 5,500 and 6,500 troops, predominantly spearmen, prepared to prevent Edward's forces from reaching Stirling. The battle began on 23 June as the English army attempted to force its way across the high ground of the Bannock Burn, which was surrounded by marshland. Skirmishing between the two sides broke out, resulting in the death of Sir Henry de Bohun, whom Robert killed in personal combat. Edward continued his advance the following day, and encountered the bulk of the Scottish army as they emerged from the woods of New Park. The English