Hundred Years' War (1415–53)
By 1449, the French had retaken Rouen. In 1450 the Count of Clermont and Arthur de Richemont, Earl of Richmond, of the Montfort family (the future Arthur III, Duke of Brittany) caught an English army attempting to relieve Caen at the Battle of Formigny and defeated it. The English army was attacked from the flank and rear by Richemont's force just as they were on the verge of beating Clermont's army. The French proceeded to capture Caen on July 6 and Bordeaux and Bayonne in 1451. The attempt by Talbot to retake Guyenne, though initially welcomed by the locals, was crushed by Jean Bureau and his cannons at the Battle of Castillon in 1453 where Talbot had led a small Anglo-Gascon force in a frontal attack on an entrenched camp. This is considered the last battle of the Hundred Years' War.
Hundred Years' War
In 1348, the Black Death, which had just arrived in Paris, began to ravage Europe. In 1355, after the plague had passed and England was able to recover financially, King Edward's son and namesake, the Prince of Wales, later known as the Black Prince, led a Chevauchée from Gascony into France, during which he pillaged Avignonet and Castelnaudary, sacked Carcassonne, and plundered Narbonne. The next year during another Chevauchée he ravaged Auvergne, Limousin, and Berry but failed to take Bourges. He offered terms of peace to King John II of France (known as John the Good), who had outflanked him near Poitiers, but refused to surrender himself as the price of their acceptance. This led to the Battle of Poitiers (19 September 1356) where his army routed the French. During the battle, the Gascon noble Jean de Grailly, captal de Buch led a mounted unit that was concealed in a forest. The French advance was contained, at which point de Grailly led a flanking movement with his horsemen cutting off the French retreat and succeeding in capturing King John and many of his nobles. With John held hostage, his son the Dauphin (later to become Charles V) assumed the powers of the king as regent.