“ Duncan I. (d. 1040) was a son of Crinan or Cronan, lay abbot of Dunkeld, and became king of the Scots in succession to his maternal grandfather, Malcolm II., in 1034, having previously as rex Cumbrorum ruled in Strathclyde. His accession was “the first example of inheritance of the Scottish throne in the direct line.” Duncan is chiefly known through his connexion with Macbeth, which has been immortalized by Shakespeare. ”