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 Dalrigh Macdonalds of Islay and the Campbells of Loch Awe, whom he defeated in battle sometime in the mid-1290s. The outbreak of the War of Independence in 1296 placed the MacDougalls on the side of the Scottish patriots. This changed in the most dramatic fashion in February 1306, when Robert Bruce killed John Comyn. Soon after Bruce seized the crown, and the Macdougalls and other families with Balliol and Comyn associations became allies of the English. In June 1306, Robert Bruce and his army were caught unprepared at the Battle of Methven, west of Perth, by Aymer de Valence, an English