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
Robert the Bruce held and once more the crown was placed on the brow of Robert Bruce, Earl of Carrick, Lord of Annandale, King of the Scots. In June 1306 Bruce was defeated at the Battle of Methven. His wife and daughters and other women of the party were sent to Kildrummy in August 1306 under the protection of Bruce's brother, Neil Bruce, and the Earl of Atholl and most of his remaining men. Bruce fled with a small following of his most faithful men, including Sir James Douglas and Gilbert Hay, Bruce's brothers Thomas, Alexander, and Edward, as well as Sir Neil