The Sacred Military Constantinian Order of Saint George is an ancient and internationally recognized Order of Knighthood which works for the glorification of the Cross, the propagation of the Faith and the defense of the Holy Roman Church.

The Grand Master is HRH Prince Charles of Bourbon Two Sicilies, Duke of Castro and the Grand Prior is HE Renato Raffaele, Cardinal Martino.

The Sacred Military Constantinian Order of Saint George is fully recognised by the Italian State through successive decrees of The President of the Italian Republic, and by other governments across the world. The Order maintains Consultative Status of the Economic and Social Council at the United Nations in New York, Geneva and Vienna.

It is the primary duty of all knights and dames of the Sacred Military Constantinian Order to live as true, exemplary Christians, and to dedicate themselves to any activity or endeavor that fosters the growth of religious principles among mankind, co-operating in every manner with the practice of the Christian way of life.

The Order, together with the members of the Illustrious Royal Order of Saint Januarius and the Royal Order of Francis I today emphasis major contributions to hospital assistance, charitable endeavor and inter-religious understanding.