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.
List of wars by death toll
""'Note: the identity of a single "war" cannot be reliably given in some cases, and some "wars" can be taken to last over more than a human lifetime, e.g.
"Reconquista" (711–1492, 781 years)
"Muslim conquests in India" (12th to 16th c., 500 years)
"Crusades" (ten or more campaigns during the period 1095–1291, 196 years),
"Mongol conquests" (1206–1368, 162 years),
"early Muslim conquests" (622–750, 128 years),
"Hundred Years' War" (1337–1453, 115 years).