The first king to create an appanage is Henry I of France in 1032, when he gave the Duchy of Burgundy to his brother Robert, Robert I of Burgundy, whose descendants retained the duchy until 1361 with the extinction of the first Capetian House of Burgundy by the death of Philip de Rouvres. Louis VIII and Louis IX also created appanages. The king who created the most powerful appanages for his sons was John II of France. His youngest son, Philip the Bold, founded the second Capetian House of Burgundy in 1363. By marrying the heiress of Flanders, Philip also became ruler of the Low Countries.