(1312-1377), king of England, was made king on the murder of his father in 1327. The real power lay with the queen-mother Isabella and Mortimer, her lover, but three years after his coronation Edward banished Isabella from his court, had Mortimer put to death and took the power into his own hands. In 1333 he conducted an expedition against Scotland and won a victory at Halidon Hill, but in his other campaigns against Scotland he accomplished nothing of importance. French interference in favor of the Scotch gave Edward an excuse for invading France, of which he claimed, through his mother, to be the rightful sovereign. His victories in France were remarkable, and his son, the Black Prince, won particular distinction. These victories, however, and even the capture and imprisonment of the French king, John, had no permanent results, and when Edward withdrew from the war, England was in an exhausted condition. The closing years of his reign were disturbed by constant conflict with Parliament and by the desertion of his son, the Black Prince.