The House of Capet was a royal dynasty that ruled France from 987 to 1328. Founded by Hugh Capet, it marked the beginning of the Capetian dynasty, which became one of the most influential royal families in European history. The Capetians expanded their territory and power through strategic marriages and alliances, establishing a strong centralized monarchy. The dynasty is notable for its long-lasting impact on France, as it laid the groundwork for the future Valois and Bourbon dynasties. The Capetians were instrumental in shaping the French state, promoting feudalism, and fostering cultural developments during the medieval period.