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 (1369–89)
In 1373 John of Gaunt commanded what historians call the Great Chevauchée. It was launched between two epidemics of the Black Death in 1369 and 1375. The economic impact of the Black Death was devastating, and John of Gaunt was having difficulty financing his French campaign. According to chronicler Jean Froissart the Chevauchée had been planned for three years.