Answer
Charlemagne's death in 814 marked a decline in centralized authority in the Carolingian Empire. Louis VI, who ruled France from 1108 to 1137, is often credited with restoring strong royal power after a period of feudal disintegration. By asserting control over his vassals and expanding the royal domain, Louis VI laid the foundation for the Capetian dynasty's enduring legacy in shaping the French monarchy.