Hundred Years' War (1415–53)
The Lancastrian War was the third and final phase of the Anglo-French Hundred Years' War. It lasted from 1415, when King Henry V of England invaded Normandy, to 1453, when the English lost Bordeaux. It followed a long period of peace from the end of the Caroline War in 1389. The phase was named after the House of Lancaster, the ruling house of the Kingdom of England, to which Henry V belonged.
Treaty of Paris (1303)
The Treaty of Paris was signed on 20 May 1303 between Philip IV of France and Edward I of England. Based on the terms of the treaty, Gascony was restored to England from France, thus setting the stage for the Hundred Years' War (1337-1453). Moreover, it was confirmed that Philip's daughter would marry Edward's son (the later Edward II of England), as already agreed in the Treaty of Montreuil (1299).