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 he delivered his infant daughter Marjorie as a hostage, which he never did. When King Edward returned to England after his victory at the Battle of Falkirk, the Bruce's possessions were excepted from the Lordships and lands that Edward assigned to his followers. The reason for this is uncertain, though Fordun records Robert fighting for Edward, at Falkirk, under the command of Antony Bek, Bishop of Durham, Annandale and Carrick. This participation is contested as no Bruce appears on the Falkirk roll of nobles present in the English army, and two 19th Century antiquarians, Alexander Murison and George Chalmers, have