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.
Robertians
Although Philip II was officially the last king of the Franks ("rex Francorum") and the first king of France ("roi de France"), in (systematic application of) historiography, Hugh Capet holds this distinction. He is the founder of the Capetians, the royal dynasty that ruled France until the revolution of the Second French Republic in 1848save during the interregnum of the French Revolution and Napoleonic Wars. It still reigns in Europe today; both King Felipe VI of Spain and Grand Duke Henri of Luxembourg are descendants of this family through the Bourbon cadet branch of the dynasty.