Chivalry and Betrayal: The Hundred Years' War
In 1435 Bedford died and sworn enemies Charles VII and Phillip, Duke of Burgundy joined forces to get the English out and with Henry VI reluctance to wage war and to maintain peace by marrying Margaret of Anjou. Charles had no intention of peace and used cannon and sieges to retake France and Normandy culminating in the defeat of the English at the Battle of Castillon in the last English territory of Gascony ending the hundred years war.
Hundred Years' War (1337–1360)
After the treaties of London failed Edward launched the Rheims campaign which, though largely unsuccessful, led to the Treaty of Brétigny which settled certain lands in France on Edward for renouncing his claim to the French throne. This was in part caused by Black Monday (1360), the freak storm that devastated the English army and forced Edward III into peace talks. This peace lasted nine years; but then began a second phase of hostilities known as the Caroline War.