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 seizing some of Henry's personal treasures, including a crown. Whether this was part of a deliberate French plan or an act of local brigandage is unclear from the sources. Certainly, d'Azincourt was a local knight but he might have been chosen to lead the attack because of his local knowledge and the lack of availability of a more senior soldier. In some accounts the attack happened towards the end of the battle, and led the English to think they were being attacked from the rear. Barker, following the "Gesta Henrici", believed to have been written by an English chaplain who