What were the causes, course, and consequences of the Hundred Years’ War?

The plague ravaged populations in Asia, North Africa, and Europe; in western Europe a long international war that began a decade or so before the plague struck and lasted well into the next century added further misery. England and France had engaged in sporadic military hostilities from the time of the Norman conquest in 1066, and in the middle of the fourteenth century these became more intense. From 1337 to 1453 the two countries intermittently fought one another in what was the longest war in European history, ultimately dubbed the Hundred Years’ War, though it actually lasted 116 years.