The Kingdom of France in the Middle Ages (roughly, from the 10th century to the middle of the 15th century; for the period before Hugh Capet's accession to the throne, see Francia and Carolingian Empire) was marked by the expansion of royal control by the House of Capet (987–1328); their struggles with the virtually independent principalities (duchies and counties, such as the Norman and Angevin regions) that had developed following the Viking invasions and through the piecemeal dismantling of the Carolingian Empire and West Francia (843–987); the creation and extension of administrative/state control (notably under Philip II Augustus and Louis IX) in the 13th century; the rise of the House of Valois (1328–1589) and the protracted dynastic crisis of the Hundred Years' War with the Kingdom of England (1337–1453) compounded by the catastrophic Black Death epidemic (1348), which laid the seeds for a more centralized and expanded state in the early modern period and the creation of a sense of French identity
More information on the Wikipedia page [1]. The page for Paris in the Middle Ages is [2].