king of Scots from 1040, the legend of whose life was the basis of Shakespeare's Macbeth. He was probably a grandson of King Kenneth II (reigned 971-995), and he married Gruoch, a descendant of King Kenneth III (reigned 997-1005). About 1031 Macbeth succeeded his father, Findlaech (Sinel in Shakespeare), as mormaer, or chief, in the province of Moray, in northern Scotland. Macbeth established himself on the throne after killing his cousin King Duncan I in battle near Elgin-not, as in Shakespeare, by murdering Duncan in bed-on August 14, 1040. Both Duncan and Macbeth derived their rights to the crown through their mothers.
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