The Kingdom of France is the historiographical name or umbrella term given to various political entities of France in the medieval and early modern period. It was one of the most powerful states in Europe from the High Middle Ages to 1848 during its dissolution. It was also an early colonial power, with colonies in Asia and Africa, and the largest being New France in North America geographically centred on the Great Lakes. In the 16th to the 18th centuries, the French colonial empire stretched from a total area at its peak in 1680 to over 10 million square kilometres (3.9 million square miles), the second-largest empire in the world at the time behind the Spanish Empire.
The Kingdom of France was descended directly from the western Frankish realm of the Carolingian Empire, which was ceded to Charles the Bald with the Treaty of Verdun (843). A branch of the Carolingian dynasty continued to rule until 987, when Hugh Capet was elected king and founded the Capetian dynasty. The territory remained known as Francia and its ruler as rex Francorum ('king of the Franks') well into the High Middle Ages. The first king calling himself rex Francie ('King of France') was Philip II, in 1190, and officially from 1204. From then, France was continuously ruled by the Capetians and their cadet lines under the Valois and Bourbon until the monarchy was abolished in 1792 during the French Revolution. The Kingdom of France was also ruled in personal union with the Kingdom of Navarre over two time periods, 1284–1328 and 1572–1620, after which the institutions of Navarre were abolished and it was fully annexed by France (though the King of France continued to use the title "King of Navarre" through the end of the monarchy).
France in the Middle Ages was a decentralised, feudal monarchy. In Brittany, Normandy, Lorraine, Provence, East Burgundy and Catalonia (the latter now a part of Spain), as well as Aquitaine, the authority of the French king was barely felt. West Frankish kings were initially elected by the secular and ecclesiastical magnates, but the regular coronation of the eldest son of the reigning king during his father's lifetime established the principle of male primogeniture. During the Late Middle Ages, rivalry between the Capetian dynasty, rulers of the Kingdom of France and their vassals the House of Plantagenet, who also ruled the Kingdom of England as part of their so-called competing Angevin Empire, resulted in many armed struggles. The most notorious of them all are the series of conflicts known as the Hundred Years' War (1337–1453) in which the kings of England laid claim to the French throne. Emerging victorious from said conflicts, France subsequently sought to extend its influence into Italy, but after initial gains was defeated by Spain and the Holy Roman Empire in the ensuing Italian Wars (1494–1559).
France in the early modern era was increasingly centralised; the French language began to displace other languages from official use, and the monarch expanded his absolute power in an administrative system, known as the Ancien Régime, complicated by historic and regional irregularities in taxation, legal, judicial, and ecclesiastic divisions, and local prerogatives. Religiously, France became divided between the Catholic majority and a Protestant minority, the Huguenots, which led to a series of civil wars, the Wars of Religion (1562–1598). Subsequently, France developed its first colonial empire in Asia, Africa, and in the Americas.
Colonial conflicts with Great Britain led to the loss of much of its North American holdings by 1763. French intervention in the American Revolutionary War helped the United States secure independence from King George III and the Kingdom of Great Britain, but was costly and achieved little for France. Through its colonial empire, large population, and centralized government, France became a superpower, lasting from the reign of King Louis XIV in the 17th century until Napoleon's defeat in 1815.
Following the French Revolution, which began in 1789, the Kingdom of France adopted a written constitution in 1791, but the Kingdom was abolished a year later and replaced with the First French Republic. The monarchy was restored by the other great powers in 1814 and, with the exception of the Hundred Days in 1815, lasted until the French Revolution of 1848.
During the later years of Charlemagne's rule, the Vikings made advances along the northern and western perimeters of the Kingdom of the Franks. After Charlemagne's death in 814 his heirs were incapable of maintaining political unity and the empire began to crumble. The Treaty of Verdun of 843 divided the Carolingian Empire into three parts, with Charles the Bald ruling over West Francia, the nucleus of what would develop into the kingdom of France. Charles the Bald was also crowned King of Lotharingia after the death of Lothair II in 869, but in the Treaty of Meerssen (870) was forced to cede much of Lotharingia to his brothers, retaining the Rhône and Meuse basins (including Verdun, Vienne and Besançon) but leaving the Rhineland with Aachen, Metz, and Trier in East Francia.
Viking incursions up the Loire, the Seine, and other inland waterways increased. During the reign of Charles the Simple (898–922), Vikings under Rollo from Scandinavia settled along the Seine, downstream from Paris, in a region that came to be known as Normandy.
The Carolingians were to share the fate of their predecessors: after an intermittent power struggle between the two dynasties, the accession in 987 of Hugh Capet, Duke of France and Count of Paris, established the Capetian dynasty on the throne. With its offshoots, the houses of Valois and Bourbon, it was to rule France for more than 800 years.
The old order left the new dynasty in immediate control of little beyond the middle Seine and adjacent territories, while powerful territorial lords such as the 10th- and 11th-century counts of Blois accumulated large domains of their own through marriage and through private arrangements with lesser nobles for protection and support.
The area around the lower Seine became a source of particular concern when Duke William of Normandy took possession of the Kingdom of England by the Norman Conquest of 1066, making himself and his heirs the king's equal outside France (where he was still nominally subject to the Crown).
Henry II inherited the Duchy of Normandy and the County of Anjou, and married France's newly single ex-queen, Eleanor of Aquitaine, who ruled much of southwest France, in 1152. After defeating a revolt led by Eleanor and three of their four sons, Henry had Eleanor imprisoned, made the Duke of Brittany his vassal, and in effect ruled the western half of France as a greater power than the French throne. However, disputes among Henry's descendants over the division of his French territories, coupled with John of England's lengthy quarrel with Philip II, allowed Philip to recover influence over most of this territory. After the French victory at the Battle of Bouvines in 1214, the English monarchs maintained power only in southwestern Duchy of Aquitaine.
Late Middle Ages and the Hundred Years' War
The death of Charles IV of France in 1328 without male heirs ended the main Capetian line. Under Salic law the crown could not pass through a woman (Philip IV's daughter was Isabella, whose son was Edward III of England), so the throne passed to Philip VI, son of Charles of Valois. This, in addition to a long-standing dispute over the rights to Gascony in the south of France, and the relationship between England and the Flemish cloth towns, led to the Hundred Years' War of 1337–1453. The following century was to see devastating warfare, the Armagnac–Burgundian Civil War, peasant revolts (the English peasants' revolt of 1381 and the Jacquerie of 1358 in France) and the growth of nationalism in both countries.
The losses of the century of war were enormous, particularly owing to the plague (the Black Death, usually considered an outbreak of bubonic plague), which arrived from Italy in 1348, spreading rapidly up the Rhône valley and thence across most of the country: it is estimated that a population of some 18–20 million in modern-day France at the time of the 1328 hearth tax returns had been reduced 150 years later by 50 percent or more.