The Hundred Years' War (1337-1453) was an intermittent conflict between England and France lasting 116 years. It began principally because King Edward III (r. 1327-1377) and Philip VI (r. 1328-1350) escalated a dispute over feudal rights in Gascony to a battle for the French Crown.
What was the reason for the hundred years war?
The immediate causes of the Hundred Years War were the dissatisfaction of Edward III of England with the nonfulfillment by Philip VI of France of his pledges to restore a part of Guienne taken by Charles IV; the English attempts to control Flanders, an important market for English wool and a source of cloth; and ...
What was the cause and effect of the Hundred Years War?
The war laid waste to much of France and caused enormous suffering; it virtually destroyed the feudal nobility and thereby brought about a new social order. By ending England's status as a power on the continent, it led the English to expand their reach and power at sea.