Hundred Years' War
The Hundred Years' War was a series of conflicts waged from 1337 to 1453 by the House of Plantagenet, rulers of the Kingdom of England, against the French House of Valois, over the right to rule the Kingdom of France. Each side drew many allies into the war. It was one of the most notable conflicts of the Middle Ages, in which five generations of kings from two rival dynasties fought for the throne of the largest kingdom in Western Europe. The war marked both the height of chivalry and its subsequent decline, and the development of strong national identities in both countries.
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).