Charles the Bald signed the 877 Capitulary of Quierzy, allowing counts to be succeeded by their sons, before his death four months later; this formed the basis of feudalism in western Europe. He was succeeded as king of France by his son, Louis the Stammerer, king of Aquitaine. Louis did not choose any of his sons as the new king of Aquitaine, putting an end to the kingdom. He died in 879 and was succeeded by his two sons, Louis III and Carloman. Louis III inherited northwest France, and Carloman inherited Burgundy and Aquitaine. However, from 870 to 890 central power was so weak that the counts in southern France were autonomous and Paris would not reassert its authority over the south of France for four centuries.