King of France

The monarchs of the Kingdom of France ruled from the establishment of the Kingdom of the West Franks in 843 until the fall of the Second French Empire in 1870, with several interruptions. Between the period from King Charles the Bald in 843 to King Louis XVI in 1792, France had 45 kings. Adding the 7 Emperors and Kings after the French Revolution, this comes to a total of 52 monarchs of France.

In August 843 the Treaty of Verdun divided the Frankish realm into three kingdoms, one of which (Middle Francia) was short-lived; the other two evolved into France (West Francia) and, eventually, Germany (East Francia). By this time the eastern and western parts of the land already had different languages and cultures.

The death of Charles IV started the Hundred Years' War between the House of Valois and the House of Plantagenet later the House of Lancaster over control of the French throne. The Valois claimed the right to the succession by male-only primogeniture, having the closest all-male line of descent from a recent French king. They were descended from the third son of Philip III, Charles, Count of Valois. The Plantagenets based their claim on being closer to a more recent French king, Edward III of England being a grandson of Philip IV through his mother, Isabella.

The two houses fought the Hundred Years War to enforce their claims; the Valois were ultimately successful, and French historiography counts their leaders as rightful kings. One Plantagenet, Henry VI of England, did enjoy de jure control of the French throne under the terms of the Treaty of Troyes, which formed the basis for continued English claims to the throne of France until 1801. The Valois line would rule France until the line became extinct in 1589, in the backdrop of the French Wars of Religion. As Navarre did not have a tradition of male-only primogeniture, the Navarrese monarchy became distinct from the French, with Joan II, a daughter of Louis X, inheriting there.