1356: Battle of Poitiers
The Battle of Poitiers is fought on 19 September 1356, part of the Hundred Years’ War. English forces, led by Edward the Black Prince, defeat French forces and capture King John II of France. He is brought to England and imprisoned in Berkhamsted Castle. Like the Battle of Crécy, England’s victory is due to the large contingent of 2,000 longbowmen, many of whom came from Berkhamsted.