カスティヨンの戦い
Somerset was appointed to replace York as commander in France in 1448. Fighting began in Normandy in August 1449. Somerset's subsequent military failures left him vulnerable to criticism from York's allies. Somerset was supposed to be paid £20,000; but little evidence exists that he was. He failed to repulse French attacks, and by the summer of 1450 nearly all the English possessions in northern France were lost, with Normandy having fallen after the Battle of Formigny and Siege of Caen. By 1453 all the English possessions in the south of France were also lost, and the Battle of Castillon ended the Hundred Years War.