Chivalry and Betrayal: The Hundred Years' War to confirm his legitimacy resumed the war with France now led by a king who was insane. In 1415 he landed at Harfleur which fell after a long siege weakening the English army. Against advice Henry led his army on a chevauchée to English held Calais but was intercepted by a far larger French army at Agincourt and at the ensuing battle Henry's archers killed the cream of French nobility. At Agincourt Henry V, the son of a usurper, had proved his right to be King and he was determined to regain Normandy and recreate the Duchy and landed in
Battle of Agincourt in these French sources has the French losing six times more men than the English. It has been possible to name at least 500 individuals from the French army killed in the battle and over 300 prisoners. The English sources vary between about 1,500 and 11,000 for the French dead, with English dead put at no more than 100. Barker identifies from the available records "at least" 112 Englishmen killed in the fighting, including Edward of Norwich, 2nd Duke of York, a grandson of Edward III. One widely used estimate puts the English casualties at 450, a significant number in