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.
Peasant revolt in Flanders 1323–1328
When the Hundred Years War started, Louis remained steadfast in his pro-French policy, despite the county's economic dependence on England. His actions resulted in an English boycott of the wool trade, which in turn sparked a new insurrection under Jacob van Artevelde. In 1339, the count fled his Flemish lands, never able to return. Louis was killed in the Battle of Crécy in 1346.