Clan Donald, also known as Clan MacDonald ( ), is a Highland Scottish clan and one of the largest Scottish clans. The Lord Lyon King of Arms, the Scottish official with responsibility for regulating heraldry in that country, issuing new grants of coats of arms, and serving as the judge of the Court of the Lord Lyon, recognises under Scottish law the High Chief of Clan Donald. Historically the chiefs of the Clan Donald held the title of Lord of the Isles until 1493 and two of those chiefs also held the title of Earl of Ross until 1476. There are also numerous branches to the Clan Donald and several of these have chiefs recognised by the Lord Lyon King of Arms; these are: Clan Macdonald of Sleat, Clan Macdonald of Clanranald, Clan MacDonell of Glengarry, Clan MacDonald of Keppoch, and Clan MacAlister. There are also notable historic branches of Clan Donald without chiefs so-recognised, these are: the Clan MacDonald of Dunnyveg, Clan MacDonald of Lochalsh, Clan MacDonald of Glencoe, and the MacDonalds of Ardnamurchan. The MacDonnells of Antrim are a cadet branch of the MacDonalds of Dunnyveg but do not belong to the Scottish associations and have a chief officially recognised in Ireland. History Origins The Norse-Gaelic Clan Donald traces its descent from Dòmhnall Mac Raghnuill (d. circa 1250), whose father Reginald or Ranald was styled "King of the Isles" and "Lord of Argyll and Kintyre". Ranald's father, Somerled was styled "King of the Hebrides", and was killed campaigning against Malcolm IV of Scotland at the Battle of Renfrew in 1164. Clan Donald shares a descent from Somerled with Clan MacDougall, who traces their lineage from his elder son, Dugall mac Somhairle. Their dynasties are together commonly referred to as the Clann Somhairle. Furthermore, they are descended maternally from both the House of Godred Crovan and the Earls of Orkney, through Somerled's wife Ragnhildis Ólafsdóttir, daughter of Olaf I Godredsson, King of Mann and the Isles and Ingeborg Haakonsdottir, daughter of Haakon Paulsson, Earl of Orkney. It remains uncertain if the Clann Somhairle are also descendants in some manner, through one or another of the above dynasts, of the House of Ivar, but this is commonly argued. Tradition gave Somerled a Gaelic descent in the male line, as the medieval seanchaidhean (Gaelic historians) traced his lineage through a long line of ancestors back to the High Kings of Ireland,