Philip, in his own right, held the counties of Artois and Burgundy from 1349 (inherited from his grandmother), the Duchy of Burgundy from 1349 (inherited from his grandfather) and the counties of Auvergne and Boulogne from 1360 (inherited from his mother). In 1357, by marrying the future Margaret III, Countess of Flanders, then heiress of Flanders, he was promised the counties of Flanders, Nevers, Rethel, and Antwerp, and the duchies of Brabant, and Limburg. Most of these lands were located in the Low Countries.