Louis Alphonse, Duke of Anjou
Louis Alphonse was born in Madrid, the second son of Alfonso de Borbón, Duke of Anjou and Cádiz, and of his wife María del Carmen Martínez-Bordiú y Franco, eldest granddaughter of Francisco Franco. Alfonso was at that time the dauphin (using "Duke of Bourbon" as title of pretence) according to those who supported the claim of his father, Infante Jaime, Duke of Segovia to the French throne. On 20 March 1975, the Infante Jaime ("Henri VI" by Legitimist reckoning) died. Alfonso then asserted his claim to be both Head of the House of Bourbon and Legitimist claimant to the throne of France and the Co-Principality of Andorra. As such, he took the title "Duke of Anjou", and on 19 September 1981 gave Louis Alphonse the title Duke of Touraine.
Rothschild banking family of France
The Rothschild banking family of France is a French banking dynasty founded in 1812 in Paris by James Mayer de Rothschild (1792–1868). James was sent there from his home in Frankfurt, Germany, by his father, Mayer Amschel Rothschild (1744–1812). Wanting his sons to succeed on their own and to expand the family business across Europe, Mayer Amschel Rothschild had his eldest son remain in Frankfurt, while his four other sons were sent to different European cities to establish a financial institution to invest in business and provide banking services. Endogamy within the family was an essential part of the Rothschild strategy in order to ensure control of their wealth remained in family hands.