Definitions for macbethməkˈbɛθ, mæk-
Random House Webster's College Dictionary
died 1057, king of Scotland 1040–57: subject of a tragedy by Shakespeare.
king of Scotland (died in 1057)
A Shakespeare play, about the Scottish royal family
The Nuttall Encyclopedia
a thane of the north of Scotland who, by assassination of King Duncan, became king; reigned 17 years, but his right was disputed by Malcolm, Duncan's son, and he was defeated by him and fell at Lumphanan, December 5, 1056.