Edward devoted the next year to legislation, then went abroad to mediate, without success, in the quarrel between France and Aragon. He had soon to return to quell fresh disturbances in Wales, and even in England, where the great Statute of Winchester, which had been passed in 1285 to place the defence of the country on a really national basis, had not yet had time to effect its end. Finding that most of his judges had been corrupting justice, he punished them with an iron hand, next banished in 1290 all the Jews to the number of over sixteen thousand from the kingdom, on the plea of extortionate usury. Earlier in the reign he had hanged 280 for money-clipping and forgery. Just at this time the death of the young Scottish queen, the Maid of Norway, whom Edward had caused to be betrothed to his eldest surviving son, Edward of Caernarvon, opened up a fatal contest for the Scottish crown, which gave Edward his opportunity to assert anew the old but somewhat shadowy claim of the English crown to the over-lordship of Scotland. The southern half of that composite kingdom was inhabited by people of English blood and English institutions; its southeastern part, the Lothians, had undoubtedly once formed part of the Anglian kingdom of Northumbria; while its southwestern, Strathclyde or Scottish Cumbria, the population of which was in great part Celtic, had in 945 been given by the English king Edmund I. to Malcolm as a fief. The northern portion of the kingdom was purely Celtic in blood, and had at no time been subject to English influences, but though the reigning family was itself of Celtic origin, its authority hardly extended effectively beyond the region inhabited by men of English blood. Undoubtedly the Scottish king in 921 chose Edward the Elder "to father and to lord," and the right then acknowledged was claimed successively by William the Conqueror, Rufus, and other English kings. Moreover, from the twelfth century it had been customary for the Scottish kings or their sons to receive English earldoms, and do homage for them, but it continued to remain somewhat vague whether such homage was understood to be extended beyond these earldoms, so as to include the Lowland provinces and the whole Scottish kingdom. William the Lion, taken prisoner at Alnwick in 1174, for his freedom acknowledged the supremacy of Henry II. in the treaty concluded at Felaise on December 7; but on his return found his subjects ill-disposed to accede to his cowardly submission; and fifteen years later the claim founded on this special act of submission was formally renounced for a sum of 10,000 merks by Richard I., who was eager to raise money for his Crusade. Such was the ill-defined position of this ancient controversy, when fate seemed to fling into Edward's hands the opportunity of defining it anew with all the clearness dear to his legal mind. It was easy for him to secure a recognition of his superiority from the selfish and eager candidates for the crown, and