Robert Munro, 6th Baron of Foulis well have had Munros with him when he was captured at the Battle of Dunbar (1296). It was the Earl's son "Sir Walter the Ros" who fought at the Battle of Bannockburn in 1314 where the Scottish army defeated the English and Robert Munro is said to have fought there with him. General Stewart later included the Munros in the list of Highland clans who fought at Bannockburn. Robert Munro is said to have survived the battle but according to tradition his son George was killed and Robert was therefore later succeeded by his grandson, also called George. Robert's second
Robert the Bruce at Ramsey in the Isle of Man, laid siege to Castle Rushen in Castletown, capturing it on 21 June 1313 and denying the English the island's strategic importance. The eight years of exhausting but deliberate refusal to meet the English on even ground have caused many to consider Bruce one of the great guerrilla leaders of any age. This represented a transformation for one raised as a feudal knight. By 1314, Bruce had recaptured most of the castles in Scotland held by the English and was sending raiding parties into northern England as far as Carlisle. In response, Edward II