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 a period with one or more allied English noble families, such as the de Clares of Gloucester, or perhaps even in the English royal household. Sir Thomas Grey asserted in his "Scalacronica" that in about 1292, Robert the Bruce, then aged eighteen, was a 'young bachelor of King Edward's Chamber'. While there remains little firm evidence of Robert's presence at Edward's court, on 8 April 1296 both Robert and his father were pursued through the English Chancery for their private household debts of £60 by several merchants of Winchester. This raises the possibility that young Robert the Bruce was on