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 and his party then attacked Dumfries Castle where the English garrison surrendered. Bruce hurried from Dumfries to Glasgow, where his friend and supporter Bishop Robert Wishart granted him absolution and subsequently adjured the clergy throughout the land to rally to Bruce. Nonetheless, Bruce was excommunicated for this crime. English records still in existence today tell a completely different story. They state that the Comyn murder was planned in an attempt to gain the throne of Scotland. For this reason King Edward of England wrote to the Pope and asked for his excommunication of Robert Bruce. No records have ever been