Clan Donnachaidh the Battle of Methven in 1306. The clan asserts that Stout Duncan's relatives and followers (not yet known as Robertsons) supported Robert the Bruce at the Battle of Bannockburn in 1314. His descendants became known (in English or Scots) as the Duncansons, or Gaelic "Clann Dhònnchaidh", "Children of Duncan". Duncan is believed to have been killed at the Battle of Neville's Cross and was succeeded by Robert, from who the Clan Robertson takes its name. Robert's brother, Patrick, was the ancestor of the Robertsons of Lude who were the principal cadet branch. In 1394 a clan battle took place between
Battle of Bannockburn was reopened. After the death of Edward I, his son Edward II of England came to the throne in 1307 but was incapable of providing the determined leadership his father had shown, and the English position soon became more difficult. In 1313, Bruce demanded the allegiance of all remaining Balliol supporters, under threat of losing their lands, as well as the surrender of the English forces encircling Stirling Castle. The castle was one of the most important castles held by the English, as it commanded the route north into the Scottish Highlands. It was besieged in 1314 by Robert the