5 October 2015 and was succeeded by his only son, Prince Pedro, Duke of Calabria. Supporters of Prince Carlo, Duke of Castro reject all three positions advanced by Infante Carlos' supporters, and claim that the rival claimant's ancestor validly renounced both the crown of the Two Sicilies and the grand magistry. Each branch appoints a Roman Catholic cardinal as grand prior. On 16 October 2012, the Vatican Secretary of State renewed its position that the Holy See does not recognise any order except the seven Papal Orders listed on their statement. The Sacred Military Constantinian Order of Saint George was not one of those orders. Nonetheless, the Hispano-Neapolitan Order's use of a chapel in Barcelona Cathedral has twice been confirmed by the Apostolic Penitentiary and the Hispanio-Neapolitan Order's Masses have been celebrated by the Order's Grand Prior Cardinal Gerhard Ludwig Müller in the Major Basilica of Saint Mary Major, Rome, as well as in Naples, Palermo, London, and Philadelphia, while other senior Roman Curia cardinals have also celebrated at investitures and other religious ceremonies of the Order. Version led by Prince Pedro, Duke of Calabria (Hispano-Neapolitan branch) Spaniards and Italians who have been granted the Constantinian Order by Infante Carlos, Duke of Calabria and his heir Prince Pedro have applied for, and received, authorisation to wear the decorations of the order. In a decree of the Spanish Ministry of Foreign Affairs by the Introductor de Embajadores, 28 November 2014, the Ministry stated that along with the Sovereign Military Order of Malta, the Equestrian Order of the Holy Sepulchre and the Royal Order of Saint Januarius (of which Prince Pedro, Duke of Calabria, is also Grand Master) "... la Sagrada y Militar Orden Constantiniana de San Jorge fueron tuteladas por la Corona de Espana o se hallan estrechamente vinculadas a su Historia, tal y como preve en este sentido el Ministerio de Defensa en su Instruccion General 06/12 sobre autorización de uso de recompensas civiles y militares." ("...the Sacred Military Constantinian Order of Saint George, came under the protection of or were linked to the Crown and history of Spain, as set forth by the Ministry of Defence in its General Instruction 06/12, on permission to wear civil and military awards"). The status of the Constantinian Order was again defined in a statement by the Introductor de Embajadores, dated 2 June 2017 and issued in Spanish, French and English - the