First Hundred Years' War
The First Hundred Years' War (French: Première Guerre de Cent Ans; 1159–1259) was a series of conflicts and disputes during the High Middle Ages in which the House of Capet, rulers of the Kingdom of France, fought the House of Plantagenet (also known as the House of Anjou or the Angevins), rulers of the Kingdom of England. The conflict emerged over the fiefs in France held by the Angevins, which at their peak covered around half of the territory of the French realm.