The Sacred Military Constantinian Order of Saint George (SMOCG) (Italian: Sacro Militare Ordine Costantiniano di San Giorgio, Spanish: Sagrada Orden Militar Constantiniana de San Jorge), also historically referred to as the Imperial Constantinian Order of Saint George and the Order of the Constantinian Angelic Knights of Saint George, is a family order of knighthood of the House of Bourbon-Two Sicilies. Currently, the grand magistry of the order is disputed among the two claimants to the headship of the former reigning House of Bourbon-Two Sicilies as heirs of the House of Farnese, namely Prince Pedro and Prince Carlo. The order was one of the rare orders confirmed as a religious-military order in the papal bull Militantis Ecclesiae in 1718 owing to a notable success in liberating Christians in the Peloponnese. Together with the Sovereign Military Order of Malta it is one of a small number of Catholic Orders that still has this status today. Although it is not an order of chivalry under patronage of the Holy See, membership is restricted to practising Catholics.Though the order is alleged to have been founded in its original form by Constantine the Great in Antiquity and then restored under later Byzantine emperors, the actual origin of the order can be traced to the 16th century, when it was founded by an Albanian noble family by the name Angelo Flavio Comneno. Though this family, extinct in 1698, claimed to be connected to the Byzantine Komnenos and Angelos dynasties, such a direct familial connection cannot be proven; the family does, however, descend from a marriage into the Arianiti family that has several descents from past Byzantine imperial families. Chivalric orders were completely unknown in the Byzantine world, so much of the alleged history of the order was invented much later. Outside the generally recognized line of grand masters from its origin in the 16th century to the present day, there have been many people claiming to be grand masters who have been forgers and title-seekers hoping to gain support for invented lines of descent from ancient and medieval nobility. Source: Wikipedia (en)