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.
Maison militaire du roi de France
The maison militaire du roi de France, in English the military household of the king of France, was the military part of the French royal household or "Maison du Roi" under the Ancien Régime. The term only appeared in 1671, though such a gathering of units pre-dates this. Like the rest of the royal household, the military household was under the authority of the Secretary of State for the Maison du Roi, but it depended on the "ordinaire des guerres" (controlled by the Secretary of State for War) for its budget. Under Louis XIV, these two officers of state were given joint command of the military household.