 The dukes of Burgundy had previously acquired a number of other possessions in the Low Countries, including Flanders, Artois, Hainaut, Brabant, Zeeland, Holland, and Namur; Luxembourg and these other Burgundian possessions in the Low Countries are collectively referred to during this period (1384–1482) as the Burgundian Netherlands.The male line of the dukes of Burgundy died out in 1477 when Philip's son Charles the Bold died at the Battle of Nancy, leaving Mary of Burgundy, his only child, as his heiress.After his death, Mary married Archduke Maximilian I of the House of Habsburg, who later became Holy Roman Emperor.