Clan Macnab Macnab family is on a charter of 1124. Malcolm de Glendochart appears in the Ragman Rolls of 1296 and submitted to Edward I of England. Angus Macnab was brother-in-law of John III Comyn, Lord of Badenoch who was murdered by Robert the Bruce in 1306. Macnab then joined forces with the Clan MacDougall in their campaign against the Bruce when Bruce was nearly captured at the Battle of Dalrigh. When the Bruce's power consolidated after his victory at the Battle of Bannockburn in 1314, the Macnab lands were forfeited and their charters were destroyed. The fortunes of the Clan Macnab
Battle of Allt Camhna they were guilty of treachery, which is much worse than a defeat. The day and place were fixed for their meeting the Caithness men, and they did not appear, but allowed those to be cut down by a host which had laid their accounts to have the combined forces of Caithness and Sutherland to contend with"". 17th-century historian Sir Robert Gordon (1580–1656), who was living at the time of the battle and who was a younger son of Alexander Gordon, 12th Earl of Sutherland, wrote an account of the battle in his book "A Genealogical History of the Earldom of