king of Strathclyde (possibly before 1034) and king of Scotland (1034–40). On the death of Malcolm II the male line of the royal dynasty was extinguished. The vacuum was filled by Duncan, son of Crínán, abbot of Dunkeld (d. 1045), and Bethóc, daughter of Malcolm II. Far from being Shakespeare's old man, he is likely to have been in his twenties. His prime concern was apparently Northumbria, where he found his wife and where he mounted a disastrous campaign in 1039. This gave Macbeth an opportunity to challenge for the throne. Duncan went on the offensive and led an army into Moray, where he was killed.
Subjects: British History.