Premise: Jean le Fèvre de Saint-Remy or Jean Lefebvre de Saint-Remy (c. 1394 – June 16, 1468) born in Abbeville, was a Burgundian chronicler during the Hundred Years' War and lord ("seigneur") of Saint Remy, la Vacquerie, Avesnes and Morienne. He is also known by the formal title of authority "Toison d'or" (Golden Fleece) because he served as the King of Arms to the Order of the Golden Fleece.
Hypothesis: The Hundred Years' War began in 1401.