Mary's son; Maximilian I, his father, as regent (1482–1493), Margaret of York, his step-grandmother, governess (1489-1493) Charles V (1506–1555), Philip's son; Margaret of Austria, regent (1507–1515) and (1519–1530) Political The sheer burden of variety of bishoprics and independent cities, the intensely local partisanship, the various taxation systems, weights and measures, internal customs barriers, fiercely defended local rights were all hindrances to a "good Valois". Attempts at enlarging personal control by the dukes resulted in revolts among the independent towns (sometimes supported by independent local nobles) and bloody military suppression in response. An increasingly modernized central government, with a bureaucracy of clerks, allowed the dukes to become celebrated art patrons and establish a glamorous court life that gave rise to conventions of behavior that lasted for centuries. Philip the Good (1419–1467) extended his personal control to the southeast; bringing Brussels, Namur, and Liège under his control. He channeled the traditional independence of the cities through such mechanisms as the first Estates-General, and consolidating of the region's economy. The first Estates General of the Burgundian territories met in the City Hall of Bruges on 9 January 1464. It included delegates from the Duchy of Brabant, the County of Flanders, Lille, Douai and Orchies, the County of Artois, the County of Hainaut, the County of Holland, the County of Zeeland, the County of Namur, the Lordship of Mechelen, and the Boulonnais. Up to 1464, the Duke only maintained ties with each of the provincial States separately. In principle, the provincial Estates were composed of representatives of the three traditional estates: clergy, nobility and the Third Estate, but the exact composition and influence of each estate (within the provincial Estates) could differ. Convening an Estates General in which all provincial Estates were represented was part of Philip the Good's policy of centralisation. Ducal patronage From 1441, Philip based his ducal court in Brussels, but Bruges was the world center of commerce, though by the 1480s the inevitable silting of its harbor was bringing its economic hegemony to a close. Philip was a great patron of illuminated manuscripts and court painting reached new highs: Robert Campin, the famous Van Eyck brothers, and Rogier van der Weyden Social and economic In 1491 and 1492, the peasants revolted in some areas. They were suppressed by Maximilian's forces under the command of Duke Albert of Saxony at a battle at Heemskerk. "Burgundian character" In the present-day Netherlands, inhabitants