the commotions of the Continent had hitherto driven to take refuge in England.[267] David, for his own purposes, encouraged this immigration by every means in his power; for many of the events of his reign disclose the dilemma in which he was occasionally placed between his nobility of native birth, and the Anglo-Norman feudatories whose allegiance was also due to the English crown. On the former he could count with safety in any of his inroads upon the south, and to the latter he could look for assistance against the rebellions of the north and west; but there were circumstances in which he could place entire dependance upon neither party. If he threw himself into the arms of the native Scots he must have resigned all hope of social improvement; but if he alienated their affections and relied exclusively upon the Anglo-Normans, he must have made up his mind to reconquer northern Scotland by force of arms, or to resign it to some successful competitor. He gave, therefore, a ready welcome to all who arrived unfettered by any tie to the English king, depending on the knights for the creation of a baronage strongly attached to his own interests, and equally to be relied upon against Englishman and native Scot; whilst to the lower orders, whom he settled in the towns, he looked for the promotion of commerce and the formation of a burgherhood, devoted to the king from whom their privileges and immunities were derived. In furtherance of his contemplated innovations, and not a little also of the views which he never ceased to entertain of still farther aggrandizing his kingdom on her southern frontier, David may be said to have laid the foundation of a radical change in the relative importance of the two great divisions of feudal Scotland. Hitherto, though the royal authority extended practically as far as the Spey, and the king of Scots was obeyed nominally throughout the whole extent of the mainland, the country between the Forth, the Tay, and the central ridge of the Grampian range, was the real heart and centre of _Alban_. Here were the royal capitals of Scone and Forteviot; here the bishoprics of St. Andrews and Dunkeld, and Abernethy once also a capital and bishopric, still an abbacy, and apparently the seat of the learning of the age.[268] Here also were the religious foundations of David’s parents, and of his brother Alexander; and here the late king was wont to hold his court at his favourite residence of Invergowrie. Southward of the Forth stretched Lothian and the ancient principality of Strath Clyde, provinces still dependant on the kingdom beyond the _Scots-water_, and never yet regarded as the seat of the central authority. Northern Scotland may be compared to Wessex, the hereditary province of the royal race and the centre of the English government; the southern district between the Forth, the Solway, and the Tweed, resembling the Danelage, secure in its own laws and customs, but