Holinshed's Chronicles, Volume V: Scotland, page 264

   After Malcolme succéeded his nephue Duncane* the sonnne of his daughter Beatrice: for Malcolme had two daughters, the one which was this Beatrice, being giuen in marriage vnto one Abbanath Crinen, a man of great nobilitie, and thane of the Iles and west parts of Scotland, bare of that mariage the foresaid Duncane; the other called Doada, was maried vnto Sincell the thane of Glammis, by whom she had issue one Makbeth a valiant gentleman, and one that if he had not béen somewhat cruel of nature, might haue been thought most