 Alexander succeeded to the Earldom and the Barony of Kingedward and other lands, probably in 1499, as he got sasine of the Earldom on 23 January 1499/1500.On 21 January 1490/1491 he got from his father a Charter to himself and his first wife, Isobel Ogilvy, of the lands of the Barony of Kettins and others; and on 6 February 1499/1500, another of the same lands to himself and his second wife, Margaret Ruthven.By his first wife, Isobel Ogilvy, who was alive in 1491, but dead before his accession to the Earldom, he seems to have had no family.