Marmaduke Thweng, 1st Baron Thweng Castle by the English leader John de Warenne, 6th Earl of Surrey. The castle was quickly starved into submission, and Thweng and FitzWarin were taken prisoner to Dumbarton Castle. He was summoned to Parliament in 1307, thus becoming Baron Thweng. At the Battle of Bannockburn in 1314, however, after the English defeat, Sir Marmaduke apparently made no attempt to escape. Instead he wandered over the battlefield until he located Robert the Bruce; only then was he prepared to surrender, and only to the victorious King. Robert recognised Sir Marmaduke and released him and Ralph de Monthermer, also captured, both without
Robert the Bruce Bruce lands in Scotland should an uprising occur led by Bruce. Whether the details of the agreement with Comyn are correct or not, King Edward moved to arrest Bruce while Bruce was still at the English court. Ralph de Monthermer learned of Edward's intention and warned Bruce by sending him twelve pence and a pair of spurs. Bruce took the hint, and he and a squire fled the English court during the night. They made their way quickly for Scotland. According to Barbour, Comyn betrayed his agreement with Bruce to King Edward I, and when Bruce arranged a meeting for