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 Dupplin Moor isolated in a hostile country he moved his forces south to the old Balliol patrimony in Galloway, the only part of Scotland that showed any kind of support for the new king. In December at Annan he was surprised by a party of Bruce loyalists and chased half-dressed across the English border. Any future attempt to recover his throne would have to be with the open support of the English king. Battle of Dupplin Moor The Battle of Dupplin Moor was fought between supporters of the infant David II, the son of Robert the Bruce, and rebels supporting the Balliol