Note 33 — Chapter I

Duncan was the grandson of Malcolm, and, by Pictish custom, should not have succeeded. The "rightful" heir, an un-named cousin of Malcolm, was murdered, and his sister, Gruoch, who married the Mormaor of Moray, left a son, Lulach, who thus represented a rival line, whose claims may be connected with some of the Highland risings against the descendants of Duncan.