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 he did on 16 November, to be received in triumph in London on the 23rd. Henry returned a conquering hero, in the eyes of his subjects and European powers outside France, blessed by God. It established the legitimacy of the Lancastrian monarchy and the future campaigns of Henry to pursue his "rights and privileges" in France. Other benefits to the English were longer term. Very quickly after the battle, the fragile truce between the Armagnac and Burgundian factions broke down. The brunt of the battle had fallen on the Armagnacs and it was they who suffered the majority of senior