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
Oak at the Gate of the Dead been associated with the reign of King Ecgberht of Wessex (802–839). If the estimated age is correct, the oak was standing in 1165 when the Battle of Crogen was fought at the location and has therefore been described as the "only living witness to this battle". A Welsh army under Owain Gwynedd inflicted a defeat upon the English king Henry II and forced him to retreat. The battle's dead were said to have been buried in the ditch of the dyke at that point: in the 19th century this was known as "Adwy'r Beddau", the pass, or gap, of the