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.
Descendants of Philippe I, Duke of Orléans
A member of the House of Bourbon, he is the founder of the current House of Orléans. His heirs formed a junior collateral branch of the royal dynasty. They include the second duke, who governed France during the minority of Louis XV in the Regency era; one French monarch, Louis Philippe I; and the Orléanist pretenders to the French throne still flourishing in the 21st century. The accumulation of the vast wealth which the House of Orléans would possess and use to influence both politics and court life (until it was confiscated during the French Revolution) began with Philippe, a lifelong beneficiary of his brother's largesse.