Stephen, though he had shown some enterprise and capacity in his successful snatch at the crown, was a man far below his three predecessors on the throne in the matter of perseverance and foresight. He was a good fighter, a liberal giver, and a faithful friend, but he lacked wisdom, caution and the power to organize. Starting his career as a perjurer, it is curious that he was singularly slow to suspect perjury in others; he was the most systematically betrayed of all English kings, because he was the least suspicious, and the most ready to buy off and to forgive rebels. His troubles began in 1136, when sporadic rebellions, raised in the name of Matilda, began to appear; they grew steadily worse, though Stephen showed no lack of energy, posting about his realm with a band of mercenary knights whenever trouble broke out. But in 1138 the crisis came; the baronage had tried the capacity of their new master and found him wanting. The outbreak was now widespread and systematic--caused not by the turbulence of a few wild spirits, but by the deliberate conspiracy of all who saw their advantage in anarchy. Matilda had a few genuine partisans, such as her half-brother Robert, earl of Gloucester, the illegitimate son of Henry I., but the large majority of those who took arms in her name were ready to sell their allegiance to either candidate in return for lands, or grants of rank or privilege. A long list of doubly and triply forsworn nobles, led by Geoffrey de Mandeville, Aubrey de Vere and Ralph of Chester, made the balance of war sway alternately from side to side, as they transferred themselves to the camp of the highest bidder. It is hard to trace any meaning in the civil war--it was not a contest between the principle of hereditary succession and the principle of elective kingship, as might be supposed. It was rather, if some explanation must be found for it, a strife between the kingly power and feudal anarchy. Unfortunately for England the kingly power was in the hands of an incapable holder, and feudal anarchy found a plausible mask by adopting the disguise of loyalty to the rightful heiress. The civil war was not Stephen's only trouble; foreign invasion was added. David I., king of Scotland, was the uncle of Matilda, and used her wrongs as the plea for thrice invading northern England, which he ravaged with great cruelty. His most formidable raid was checked by the Yorkshire shire levies, at the battle of the Standard (Aug. 22, 1138). Yet in the following year he had to be bought off by the grant of all Northumberland (save Newcastle and Bamborough) to his son Earl Henry. Carlisle and Cumberland were already in his hands. Some years later the Scottish prince also got possession of the great "Honour of Lancaster." It was not Stephen's fault that the boundary of England did not permanently recede from the Tweed and the Solway to the Tyne and the Ribble.