John V

John V (or VI) (born Dec. 24, 1389—died Aug. 28, 1442) was the duke of Brittany from 1399, whose clever reversals in the Hundred Years’ War and in French domestic conflicts served to strengthen his duchy. John was on good terms with Philip the Bold, duke of Burgundy, who was his guardian. He began to favour the Armagnac faction in the French civil war, however, after the murder of its leader, Louis, duc d’Orléans, in...