Prince Sixtus Henry of Bourbon-Parma Prince Sixtus Henry of Bourbon-Parma Prince Sixtus Henry of Bourbon-Parma (; ; born 22 July 1940) is considered Regent of Spain by some Carlists who accord him the titles Duke of Aranjuez, Infante of Spain, and Standard-bearer of Tradition. Sixtus was born in Pau, Pyrénées-Atlantiques during the World War II Vichy regime of France, the second son of Prince Xavier of Bourbon-Parma (then Prince Regent, later Carlist pretender to the throne of Spain, later titular Duke of Parma) and his wife Madeleine de Bourbon-Busset. He belongs to a cadet branch of the former royal dynasty of France (and current dynasty
House of Bourbon democracy; the Spanish Constitution of 1978 recognized the monarchy. Since 1964 the Bourbon-Parma line has reigned agnatically in Luxembourg through Grand Dukes Jean and his son Henri. In June 2011, Luxembourg adopted absolute primogeniture, replacing the old Semi-Salic law that might have guaranteed the survival of Bourbon rule for generations. Though it is not as powerful as it once was and no longer reigns in its native country of France, the House of Bourbon is by no means extinct and has survived to the present-day world, predominantly composed of republics. The House of Bourbon, in its surviving branches, is believed