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.
Prince du sang
In theory, the princes of the blood included all members of the Capetian dynasty. In practice, only the agnatic descendants of Saint Louis IX, such as the Valois and the Bourbons, were acknowledged as "princes du sang". France's kings, for instance, refused to recognize the Courtenay Capetians as princes of the blood. The Courtenays descended in legitimate male-line from King Louis VI, but had become impoverished, minor nobles over the centuries. Their repeated petitions for recognition to the Bourbon rulers were in vain. When the Treaty of Montmartre was concluded in 1662, declaring the House of Lorraine to be heirs to the French throne in the event of extinction of the Bourbons, the Courtenays protested, requesting substitution of the phrase "the royal house issued in legitimate male line from the kings of France" to no avail. In 1715 Louis-Charles de Courtenay, his son Charles-Roger and his brother Roger were once again rebuffed in their attempt to seek recognition of their status. Roger, "abbé" de Courtenay, was the last male of the family, dying on 5 May 1733, and his sister Hélène de Courtenay, marquise de Bauffremont (1689–20 June 1768), obtained no redress when she appealed to the king in 1737 after the Parlement of Paris ordered the term "princesse du sang royal de France" deleted from court documents.