The Norman Conquest of England could not fail to modify the position of Scotland. Just as the Roman and the Saxon conquests had, in turn, driven the Brythons northwards, so the dispossessed Saxons fled to Scotland from their Norman victors. The result was considerably to alter the ecclesiastical arrangements of the country, and to help its advance towards civilization. The proportion of Anglo-Saxons to the races who are known as Celts must also have been increased; but a complete de-Celticization of Southern Scotland could not, and did not, follow. The failure of William's conquest to include the Northern counties of England left Northumbria an easy prey to the Scottish king, and the marriage of Malcolm III, known as Canmore, to Margaret, the sister of Edgar the AEtheling, gave her husband an excuse for interference in England. We, accordingly, find a long series of raids over the border, of which only five possess any importance. In 1069-70, Malcolm (who had, even in the Confessor's time, been in Northumberland with hostile intent) conducted an invasion in the interests of his brother-in-law. It is probable that this movement was intended to coincide with the arrival of the Danish fleet a few months earlier. But Malcolm was too late; the Danes had gone home, and, in the interval, William had himself superintended the great harrying of the North which made Malcolm's subsequent efforts somewhat unnecessary. The invasion is important only as having provoked the counter-attack of the Conqueror, which led to the renewal of the supremacy controversy. William marched into Scotland and crossed the Forth (the first English king to do so since the unfortunate Egfrith, who fell at Nectansmere in 685). At Abernethy, on the banks of the Tay, Malcolm and William met, and the English Chronicle, as usual, informs us that the King of Scots became the "man" of the English king. But as Malcolm received from William twelve _villae_ in England, it is, at least, doubtful whether Malcolm paid homage for these alone or also for Lothian and Cumbria, or for either of them. There is, at all events, no question about the _villae_. Scottish historians have not failed to point out that the value of the homage, for whatever it was given, is sufficiently indicated by Malcolm's dealings with Gospatric of Northumberland, whom William dismissed as a traitor and rebel. Within about six months of the Abernethy meeting, Malcolm gave Gospatric the earldom of Dunbar, and he became the founder of the great house of March. No further invasion took place till 1079, when Malcolm took advantage of William's Norman difficulties to make another harrying expedition, which afforded the occasion for the building of Newcastle-upon-Tyne. The accession of Rufus and his difficulties with Robert of Normandy led, in 1091, to a somewhat belated attempt by Malcolm to support the claims of the AEtheling by a third invasion, and, in the following year, peace was made. Rufus confirmed to Malcolm the