Macbeth, King of Scotland - High King of Alba - Karl Hundason

Karl Hundason

The Orkneyinga Saga says that a dispute between Thorfinn Sigurdsson, Earl of Orkney, and Karl Hundason began when Karl Hundason became "King of Scots" and claimed Caithness. The identity of Karl Hundason, unknown to Scots and Irish sources, has long been a matter of dispute, and it is far from clear that the matter is settled. The most common assumption is that Karl Hundason was an insulting byname (Old Norse for "Churl, son of a Dog") given to Macbeth by his enemies. William Forbes Skene's suggestion that he was Duncan I of Scotland has been revived in recent years. Lastly, the idea that the whole affair is a poetic invention has been raised.

According to the Orkneyinga Saga, in the war which followed, Thorfinn defeated Karl in a sea-battle off Deerness at the east end of the Orkney Mainland. Then Karl's nephew Mutatan or Muddan, appointed to rule Caithness for him, was killed at Thurso by Thorkel the Fosterer. Finally, a great battle at Tarbat Ness on the south side of the Dornoch Firth ended with Karl defeated and fugitive or dead. Thorfinn, the saga says, then marched south through Scotland as far as Fife, burning and plundering as he passed. A later note in the saga claims that Thorfinn won nine Scottish earldoms.

Whoever Karl Hundason may have been, it appears that the saga is reporting a local conflict with a Scots ruler of Moray or Ross:

he whole narrative is consistent with the idea that the struggle of Thorfinn and Karl is a continuation of that which had been waged since the ninth century by the Orkney earls, notably Sigurd Rognvald's son, Ljot, and Sigurd the Stout, against the princes or mormaers of Moray, Sutherland, Ross, and Argyll, and that, in fine, Malcolm and Karl were mormaers of one of these four provinces.