The Valois Dukes of Burgundy were a powerful noble family in medieval Europe, ruling the Duchy of Burgundy from the late 14th to the 15th century. They were part of the larger Valois dynasty, which also included French kings. The dukes expanded their territory significantly, gaining control over regions like Flanders and Brabant, which made them influential players in European politics. Notable dukes included Philip the Bold, who initiated the family's rise, and Philip the Good, known for his patronage of the arts and military campaigns. Their reign ended with Charles the Bold, whose ambitions led to conflicts with both the French crown and the Holy Roman Empire.