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.
Duke of Orléans
Duke of Orléans () was a title reserved for French royalty, first created in 1344 by Philip VI in favor of his son Philip of Valois. Known as princes of the blood ("princes du sang"), the title of Duke of Orléans was given, when available, to the King of France's eldest brother. Thus, until 1830, they formed a collateral line of the French royal family, with an eventual right to succeed to the throne should more senior princes of the blood die out. In this way, the title of Duke of Orléans may be considered analogous to the Duke of York, which is traditionally granted to the reigning English (and later British) monarch's second son.