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.
Hundred Years' War
Bubonic plague and warfare reduced population numbers throughout Europe during this period. France lost half its population during the Hundred Years' War. Normandy lost three-quarters of its population, and Paris two-thirds. The population of England was reduced by 20 to 33 percent due to plague in the same period.