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 this makes a nonsense of the course of the battle as described by eyewitnesses and contemporaries." Those supporting a greater imbalance have generally put more store by contemporary (and especially eyewitness) accounts. The "Gesta Henrici" gives plausible figures for the English of 5,000 archers and 900 men-at-arms, but Mortimer notes it is "wildly inaccurate" in stating the English were outnumbered 30–1, and there have also been doubts as to how much it was written as propaganda for Henry V. The proportions also seem incorrect, as from surviving records we know that Henry set out with about four times as many