Alexander Stewart, Earl of Mar Noble person
Alexander Stewart (c. 1375 – 1435), Earl of Mar. He was an illegitimate son of Alexander Stewart, Earl of Buchan and probably Mairead inghean Eachann. Alexander held the Earldom of Mar and the Lordship of the Garioch in right of his first wife Isabel Douglas, Countess of Mar (d. 1408). Alexander's marriage to Isabella followed his capture of Kildrummy Castle, and Isabella with it, in 1404. This event sent major shockwaves throughout the kingdom and Alexander only escaped punishment because he was a close relation to the Royal Family. His possession of the Earldom was later regularised in 1424 by grant of his cousin, King James I. He was a close supporter of his uncle Robert Stewart, Duke of Albany, who was then ruler of the kingdom as regent for his brother King Robert III of Scotland, after he had been badly injured being kicked by his horse. Alexander led the so-called "Lowland" army, in fact that of the north-east and eastern Highlands, against Domhnall of Islay, Lord of the Isles at the bloody and indecisive battle of Harlaw in 1411.