The Constantinian Order in the world
The Grand Chancellery of the Constantinian Order is located in Rome.
The Order falls under the direct authority of the Grand Master, HRH Prince Carlo di Borbone delle Due Sicilie, who is assisted by a Royal Deputation for the government of the Order.
Since 2023, HE Cardinal Marcello Semeraro has been the Order's Grand Prior.
An organization chart of the Order can be found here.
The current statutes of the Order can be found here.
The Order is open to men and women who profess the Roman Catholic faith.
Both men ('knights') and women ('ladies') are admitted to the Order in three categories: justice, pardon and merit.
Within each category ranks are awarded on the basis of merit within or outside the Order.
The Order admits both religious and laity.
Noble birth is no longer a requirement.
The United Nations Economic and Social Council (ECOSOC) granted special consultative status to the Order on Aug. 1, 2011, in recognition of numerous charitable and humanitarian activities around the world.
The Order also has observer status at the United Nations Economic Social Commission for Asia and the Pacific (UNESCAP). This represents 62 member and associated states in Asia and the Pacific, as well as other stakeholders in the region.
The Order has delegations in every Italian region, most European countries, the United States, Argentina, Brazil and Southeast Asia. Worldwide, the Order has about 5,000 members in 2025.*
*There has been a separate Spanish branch since 1960 with several thousand members under the grand mastership of Prince Pedro de Borbón Dos Sicilias, Duke of Calabria. This branching is the result of a family dispute dating back to the early 20th century.
In addition, a smaller Constantinian Order has been associated with the former Duchy of Parma since 1816, now under the grand mastership of Prince Carlos de Bourbon de Parme. This is however a purely dynastic order of merit.
