In April 1961 Carlos met his future wife, Princess Anne of Orléans in Madrid, at the wedding of his elder sister, Princess Teresa, with Don Iñigo Moreno, future Marquès de Laula. In May 1962 they met again at the wedding in Athens of Infante Juan Carlos to Princess Sophia, daughter of the Greek king Paul of the Hellenes, appearing together at each of several occasions over the course of the week-long wedding celebrations. Two months later Anne was invited to and visited the home of Carlos's parents at Toledana. By the end of 1963 the secret was out: French news media pictured the couple together and speculated about the date when the engagement of the royal couple would be announced publicly. Although both were Roman Catholic Bourbons by male-line descent, a disagreement now erupted between the couple's fathers about the dynastic claim of Carlos's father to the legacy of the deposed Bourbon-Sicily dynasty, whose last undisputed head, Ferdinand, Duke of Calabria, had died childless in January 1960.[5] Carlos's father, Infante Alfonso, had asserted himself as rightful heir because his late father, Carlo of Bourbon-Sicily (1870-1949), had been Calabria's next oldest brother.[5] Anne's father Henri, Comte de Paris, however, upheld the claim of Ferdinand's next younger brother, Prince Ranieri, Duke of Castro (1883-1973) to the headship of the house, contending that Carlo had renounced his and his future descendants' Sicilian rights when he married the Spanish heiress presumptive, Mercedes of Asturias, in 1901, no doubt being mindful that his own claim to be head of the royal House of France depended upon the validity of the 1713 renunciation of a senior Bourbon prince, Philippe, Duc d'Anjou, in favor of the junior House of Orléans. The Comte de Paris withheld his consent, thus plans for the couple's marriage were dropped. Carlos's father died in 1964, and with patience, persistence and compromise from afar, he eventually obtained the hand of his bride.[5] The 250 guests received one of two different invitations from either the bride's parents or the groom; the former referred to the bride's marriage to "HRH Prince Carlos of Bourbon", while the latter announced the wedding of "Princess Anne of France" to the "Duke of Calabria". On 11 May 1965 at Louveciennes the "lovers of the Gotha" (as the press dubbed the couple) were married in a civil ceremony and, the following day the Comte de Paris escorted his daughter to the altar at the Chapelle royale de Dreux, the Orléans' traditional parish chapel and necropolis, for Catholic nuptials.