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 the ransom of John II (who had been captured at the Battle of Poitiers in 1356), and concede English ownership of the lands of Normandy, Touraine, Anjou, Brittany and Flanders, as well as Aquitaine. Henry would marry Catherine, the young daughter of Charles VI, and receive a dowry of 2 million crowns. The French responded with what they considered the generous terms of marriage with Catherine, a dowry of 600,000 crowns, and an enlarged Aquitaine. By 1415, negotiations had ground to a halt, with the English claiming that the French had mocked their claims and ridiculed Henry himself. In December