That the family of Sleat are the undoubted representatives of John, Earl of Ross, and the last Lord of the Isles, appears to be admitted on all sides; but, on the other hand, if the descendants of Donald, from whom the clan received its name, or even of John of the Isles, who flourished in the reign of David II., are to be held as constituting one clan, then, according to the Highland principles of clanship, the _jus sanguinis_, or right of blood to the chiefship, rested in the male representative of John, whose own right was undoubted. By Amy, daughter of Roderick of the Isles, John had three sons,--John, Godfrey, and Ranald; but the last of these only left descendants; and it is from him that the Clan Ranald derive their origin. Again, by the daughter of Robert II. John had four sons--Donald, Lord of the Isles, the ancestor of the Macdonalds of Sleat; John Mor, from whom proceeded the Macconnells of Kintyre; Alister, the progenitor of Keppoch; and Angus, who does not appear to have left any descendants. That Amy, the daughter of Roderick, was John’s legitimate wife, is proved, first, by a dispensation which the supreme Pontiff granted to John in the year 1337; and secondly, by a treaty concluded between John and David II. in 1369, when the hostages given to the king were a son of the second marriage, a grandson of the first, and a _natural_ son. Besides, it is certain that the children of the first marriage were considered as John’s feudal heirs; a circumstance which clearly establishes their legitimacy. It is true that Robert II., in pursuance of the policy he had adopted, persuaded John to make the children of these respective marriages feudally independent of each other; and that the effect of this was to divide the possessions of his powerful vassals into two distinct and independent lordships. These were, first, the lordship of Garmoran and Lochaber, which was held by the eldest son of the first marriage,--and secondly, that of the Isles, which passed to the eldest son of the second marriage; and matters appear to have remained in this state until 1427, when, as formerly mentioned, the Lord of Garmoran was beheaded, and his estates were forfeited to the crown. James I., however, reversing the policy which had been pursued by his predecessor, concentrated the possessions of the Macdonalds in the person of the Lord of the Isles, and thus sought to restore to him all the power and consequence which had originally belonged to his house; “but this arbitrary proceeding,” says Mr Skene, “could not deprive the descendants of the first marriage of the feudal representation of the chiefs of the clan Donald, which now, on the failure of the issue of Godfrey in the person of his son Alexander, devolved on the feudal representative of Reginald, the youngest son of that marriage.”