Louis Alphonse, Duke of Anjou
Their father has conferred upon them the historic French titles of, respectively, Duke of Burgundy ("duc de Bourgogne"), and Duke of Berry ("duc de Berry"). (In Spain, the twins are "Don" Luis and "Don" Alfonso de Borbón Vargas). Prince Louis, as Legitimist Dauphin of France, is expected to succeed his father as head of the French royal house, the senior Bourbon/Capetian line, in Legitimist reckoning. However, under Spanish law, and assuming Felipe VI does not in future father a son, the Spanish crown will be inherited by his elder daughter Leonor, Princess of Asturias, who will become queen regnant, and if Felipe does have a son, that son will inherit the Spanish throne regardless of the genealogical seniority of the Anjou branch. Louis and Alphonse were baptised on 5 September 2010 at St Peter's Basilica in Vatican City. Louis' godparents were Arancha Martínez-Bordíu and Francisco D'Agostino and Alphonse's were Amparo Corell de Trenor, and Lorenzo Perales.
List of French monarchs
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 the 19th century. 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.