ascended the throne in 1461 as Edward IV., the earldom of March became merged in the crown. See Thomas Rymer, _Foedera_, &c. (London, 1704-1732); T. F. Tout, _The Political History of England_, vol. iii., ed. by William Hunt and R. L. Poole (London, 1905); Sir William Dugdale, _Monasticon anglicanum_ (3 vols., London, 1655-1673); William Stubbs, _Constitutional History of England_, vol. ii. II. _Scottish Marches._--The Scottish earls of March were descended from Crinan, whose son Maldred married Algitha, daughter of Ughtred, earl of Northumberland, by Elgiva, daughter of the Saxon king Æthelred. Maldred's son Cospatrick, or Gospatrick, was made earl of Northumberland by William the Conqueror; but being soon afterwards deprived of this position he fled to Scotland, where Malcolm Canmore, king of Scotland, welcomed him and granted him Dunbar and the adjoining lands. Two generations of Cospatricks followed in lineal succession, bearing the title of earl, but without territorial designation. Cospatrick II. witnessed the charter of Alexander I. founding the abbey of Scone in 1115. The 3rd earl, also named Cospatrick, a liberal benefactor of Melrose Abbey, died in 1166, leaving two sons, the younger of whom was the ancestor of the earls of Home. The elder son, Waltheof, was the first of the family to be styled "Comes de Dunbar," about the year 1174. His importance is proved by the fact that he was one of the hostages for the performance of the Treaty of Falaise for the liberation of William the Lion in 1175. Waltheof's son Patrick Dunbar (the name Dunbar, derived from the family estates, now becoming an hereditary surname), styled 5th earl of Dunbar, although his father had been the first to adopt the territorial designation, was keeper of Berwick Castle, and married Ada, natural daughter of William the Lion. His grandson Patrick, 7th earl, headed the party that liberated King Alexander III. in 1255 from the Comyns, and in the same year was nominated guardian of the king and queen by the Treaty of Roxburgh. He signed the Treaty of Perth (July 6, 1266) by which Magnus VI. of Norway ceded the Isle of Man and the Hebrides to Scotland. His wife was Christian, daughter of Robert Bruce, the competitor for the crown of Scotland.