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.
House of Bernadotte
Two branches of the French Bernadotte family survive. The elder descends from Andrew ("André") Bernadotte, an older granduncle of Carl John's, with descendants today in the general population of France. The younger branch divided in two, one branch descending from the king's older brother John ("Jean Évangéliste") Bernadotte (1754–1813), the heads of which were French barons as of 1810 with Louvie Castle in the south of Pau as their seat (branch extinct with the death of Baron Henry Bernadotte in 1966), and the other branch being the Swedish Royal House.
The list excludes in-laws and has persons currently alive (2018) in "italics", all listed primarily as Swedish royalty unless otherwise noted.