The Abbey-Principality of San Luigi and its dependent institutions enter into agreements with the Knights of San Rocco in Italy

The Knights of San Rocco are a knightly order organized as a Christian fraternity with close ties to the Roman Catholic Church who reflect the widespread devotion to San Rocco, a medieval Franciscan Tertiary whose life and miracles are the subject of many popular celebrations throughout Italy.

Pope Paul III instituted a confraternity of San Rocco, which in 1556 was raised to an archconfraternity by Pope Paul IV, and it is from this original foundation that the present fraternal order descends.

The Ordine Cristiano dei Cavalieri di San Rocco, based in Rome, has entered into a number of mutual agreements of recognition with the Abbey-Principality of San Luigi and its dependent institutions. The Prince-Abbot of San Luigi has been appointed an Honorary Brother for life and Honorary Chief Chaplain to the Order.

The Order has also issued the following instruments of friendship, recognition, twinning, accreditation, and partnership, which have been reciprocated by the Abbey-Principality:

Abbey-Principality of San Luigi

The Order of the Sacred Cup

The Order of the Crown of Thorns

The Order of the Lion and the Black Cross

The Order of Antioch

The Apostolic Episcopal Church

The Order of Corporate Reunion

The Prefectory of Great Britain of the Confraternitas Oecumenica Sancti Sepulcri Hierosolymitani

The Epiphany Guild

The International College of Arms of the Noblesse

The Constantinople Orthodox Institute

The Institute of Arts and Letters (London)

Partnerships with the Collegio Araldico-Cavalleresco Signum Aureum, Italy

The Collegio Araldico-Cavalleresco Signum Aureum (The Heraldic-Chivalric College of the Golden Symbol) was founded in Ancona on the initiative of His Excellency Consul Prof. Dr. Maurizio Marchetti Morganti, member of an ancient noble family and Honorary Consul of the Republic of El Salvador to the Italian Republic and Honorary General Consul of the same Republic to the Republic of San Marino. He was assisted by other friends, upright men who fear God and respect the laws of their Country.

The College was founded under the auspices, gratitude, and heartfelt encouragement of Father Pierbattista Pizzaballa. He is now Cardinal of the Holy Roman Church, Guardian of Holy Mount Zion and of the Most Holy Sepulchre of Our Lord Jesus Christ, and Patriarch of Jerusalem of the Latins since 2020.

The College believes in supporting the memory and studying the history of the Holy Places and the Chivalric Orders that originated in these places. It endorses the values ​​and rules of Chivalry, Culture and Volunteering and is active in cultural exchanges with other organizations that pursue similar cultural and religious goals.

The College promotes Heraldry and, more generally, the historical period known as the Middle Ages, in all its historical, economic, cultural, religious and diplomatic expressions.

The College has entered into mutual agreements of friendship, twinning, accreditation and partnership as follows:

The Abbey-Principality of San Luigi

The Ecclesia Apostolica Divinorum Mysteriorum

Partnerships with the Gran Commenda di Santi Giovanni e Lazzaro di Gerusalemme, Italy

The Gran Commenda di Santi Giovanni e Lazzaro di Gerusalemme is based in Italy under the protection of H.I.R.H. Prince don Ezra Annibale Foscari Widmann Rezzonico, Head of the Imperial House of Leopardi of Constantinople, and with the Grand Prior H.E. Arconte Antonino Iuculano. The Protectorate has entered into mutual agreements of full partnership, friendship, collaboration, accreditation and recognition with a number of the dependent institutions of the Abbey-Principality.

The Belarus Monarchist Association

The Constantinople Orthodox Institute

The Ecclesia Apostolica Divinorum Mysteriorum

The Grand Prix Humanitaire de France et des Colonies

The Institute of Arts and Letters (London)

The International College of Arms of the Noblesse

The Order of Antioch

The Order of the Crown of Thorns

The Order of the Lion and the Black Cross

The Order of the Holy Wisdom

The Byzantine Order of Leo V the Armenian

Partnerships with the Protettorato Imperiale di San Michele Arcangelo, Italy

The Protettorato Imperiale di San Michele Arcangelo is based in Italy under the protection of H.I.R.H. Prince don Ezra Annibale Foscari Widmann Rezzonico, Head of the Imperial House of Leopardi of Constantinople, and with the Grand Prior H.E. Arconte Antonino Iuculano. The Protectorate has entered into mutual agreements of full partnership, friendship, collaboration, accreditation and recognition with a number of the dependent institutions of the Abbey-Principality.

The Belarus Monarchist Association

The Constantinople Orthodox Institute

The Ecclesia Apostolica Divinorum Mysteriorum

The Grand Prix Humanitaire de France et des Colonies

The Institute of Arts and Letters (London)

The International College of Arms of the Noblesse

The Order of Antioch

The Order of the Crown of Thorns

The Order of the Lion and Black Cross

The Order of the Holy Wisdom

The Byzantine Order of Leo V the Armenian

The Order of the Sacred Cup

Agreement with the Università Popolare e della Terza Età “Mogadiscio”, Rome, Italy

The Università Popolare e della Terza Età “Mogadiscio” is a private university in Rome, Italy, registered with the government authorities in December 2025. It is in the Italian tradition of “popular universities” and “universities of the third age”, a special category of universities in Italy that are concerned with instruction and research pursued purely for academic, religious, social and cultural benefit.

The University has issued a Diploma of Friendship, Recognition, Twinning, Accreditation and Partnership to the Abbey-Principality of San Luigi, in perpetuity.

The University has also issued diplomas of friendship, recognition, twinning, accreditation and partnership to the following institutions of the Abbey-Principality:

 

The Constantinople Orthodox Institute

The Order of the Sacred Cup

The Royal Byelorussian Protectorate of the Order of St Lazarus

The Belarus Monarchist Association

The Order of the Crown of Thorns

The Anglican Association of Colleges and Schools

The Order of Corporate Reunion

The Royal House Polanie-Patrikios

The Royal Byelorussian Protectorate of the Order of St John

The Order of Ave Maria

The Regency of Lomar

The International College of Arms of the Noblesse

The Order of the Holy Wisdom

The Institute of Arts and Letters (London)

The Epiphany Guild

The Ecclesia Apostolica Divinorum Mysteriorum

The Apostolate of the Holy Wisdom

The Order of S. Teresa – The Little Flower

The Grand Prix Humanitaire de France et des Colonies

The Prefectory of Great Britain of the Confraternitas Oecumenica Sancti Sepulcri Hierosolymitani

The Catholicate of the West

The Order of the Lion and the Black Cross

The Order of Antioch

San Luigi institutions receive accreditation from the World Accreditation Board for Academies, Colleges, Schools, Universities, Rome, Italy

Several institutions of the Abbey-Principality have recently received accreditation from the World Accreditation Board for Academies, Colleges, Schools, Universities (WABACOSU), Rome, Italy. WABACOSU is a division of the Università Popolare e della Terza Età “Mogadiscio”  established to further high and humane standards in the provision of education, particularly for adults. The institutions of the Abbey-Principality have entered into a mutual full agreement of friendship, recognition, twinning, accreditation and partnership with WABACOSU.

The International College of Arms of the Noblesse

The Institute of Arts and Letters (London)

The Constantinople Orthodox Institute

Treaty with the Gran Commenda dei Santi Giovanni e Lazzaro di Gerusalemme

The Grand Commandery of Saints John and Lazarus of Jerusalem (Gran Commenda dei Santi Giovanni e Lazzaro di Gerusalemme) headquartered in Milan, Italy, has entered into a mutual treaty of full partnership, friendship, collaboration, accreditation and recognition with The Royal Byelorussian Protectorate of the Orthodox Order of the Military and Hospitaller Order of St Lazarus of Jerusalem.

The Grand Commandery was formed in 2019 by the union of several international commanderies in the chivalric traditions of St John and St Lazarus. These included some who were already under the protection of Prince Don Hugo José Tomassini Paternò Leopardi of Constantinople. They have continued under Prince Hugo José’s successor Prince Ezra.

The Grand Commandery is under the temporal protection of the Imperial House of Tomassini Paternò Leopardi of Constantinople and has received the spiritual blessing of the Patriarchate of Antioch of the Syriac Orthodox Church, in addition to having the official recognition of Syrian institutions.

The Grand Commandery is committed to the noble mission of supporting persecuted Christians in Syria, Iraq, Egypt, and Palestine.