The Abbey-Principality of San Luigi and its dependent communions wish everyone a very happy Christmas.
Category: Institute of Arts and Letters, London
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
Partnerships with Aracne Editrice, Aracne TV, La Bussola Edizioni and Prof. Dr. Gioacchino Onorati
A number of organizations under the auspices of the Abbey-Principality of San Luigi have received Diplomas of Cultural Merits from the publishing houses Aracne Editrice, La Bussola Edizioni and Aracne TV, based in Rome, Italy, and their founder Prof. Dr Gioacchino Onorati. A mutual relationship of recognition exists with these bodies.
The Apostolic Episcopal Church
The Byelorussian Patriarchate of St Andrew the First-Called Apostle
The Ecclesia Apostolica Divinorum Mysteriorum
The Institute of Arts and Letters (London)
The Anglican Association of Colleges and Schools
The International College of Arms of the Noblesse and the Institute of Arts and Letters (London) enter into partnerships with the Imperial and Royal House of Leopardi of Constantinople
The Abbey-Principality has enjoyed a long association with the Imperial House of Tommassini-Paterno Leopardi of Constantinople, which is currently based in exile in Milan, Italy. Several institutions of the Imperial House have entered into a mutual full agreement of friendship, recognition, twinning, accreditation and partnership with the University’s dependent institutions The International College of Arms of the Noblesse and The Institute of Arts and Letters (London).
Nobile Accademia Heracliana
International College of Arms of the Noblesse
Institute of Arts and Letters (London)
Nobile Accademia Giustinianae
The International College of Arms of the Noblesse
The Institute of Arts and Letters (London)
Accademia Costantiniana Leopardiana
The International College of Arms of the Noblesse
The Institute of Arts and Letters (London)
The Serenissima Accademia Foscari Widmann Rezzonico
The International College of Arms of the Noblesse
The Institute of Arts and Letters (London)
Archivio Storico (Historical File)
The International College of Arms of the Noblesse
The Institute of Arts and Letters (London)
Partnerships with the Università Popolare e della Terza Età “Evy Delia Tommassini”, Milan, Italy
The Università Popolare e della Terza Età “Evy Delia Tommassini” is a private university after the model of the Italian “universities of the people”, and an institution of the Imperial House of Tommassini-Paterno of Constantinople, which is currently based in exile in Milan, Italy. The University has entered into a mutual full agreement of friendship, recognition, twinning, accreditation and partnership with the University.
1. The Abbey-Principality of San Luigi
2. The Apostolic Episcopal Church
3. The Byelorussian Patriarchate of St Andrew the First-Called Apostle
3. The Apostolate of the Holy Wisdom and its constituent bodies
4. The Ecclesia Apostolica Divinorum Mysteriorum
5. The Order of Corporate Reunion
6. The Order of the Sacred Cup
Partnerships with the Humanitarian Environmental Foundation, Nevada, USA
The Abbey-Principality of San Luigi has entered into mutual agreements of partnership, accreditation and recognition with the Humanitarian Environmental Foundation, which is established as a nonprofit foundation in Las Vegas, Nevada, USA, under the presidency of Professor Pasquale Sorrentino. These agreements serve to further emphasise the commitment of the Abbey-Principality towards care for the environment.
Abbey-Principality of San Luigi
The Order of the Crown of Thorns
The Order of the Lion and the Black Cross
The Grand Prix Humanitaire de France et des Colonies
The Byzantine Order of Leo the Armenian
The Royal Order of the Imperial Crown of Byelorussia
The Order of the Golden Cross of Miensk
The Order of the Byzantine Cross
The Order of St Laurent
The Royal Order of Ivan the Infante
The Order of the Pedigree
The Order of Merit of Leszek II
The Royal Byelorussian Protectorate of the Orthodox Order of the Knights Hospitaller of St John of Jerusalem
The Royal Byelorussian Protectorate of the Military and Hospitaller Order of St Lazarus of Jerusalem
The Order of the Sacred Cup
Summary of recognition:
The Apostolic Episcopal Church
The Byelorussian Patriarchate of St Andrew the First-Called Apostle
The Order of Antioch
The Order of Corporate Reunion
The Order of Ave Maria
The Order of S Teresa – The Little Flower
The Order of the Holy Wisdom
The Prefectory of Great Britain of the Confraternitas Oecumenica Sancti Sepulcri Hierosolymitani
The Ecclesia Apostolica Divinorum Mysteriorum
The International College of Arms of the Noblesse
The Institute of Arts and Letters (London)
The Regency of Lomar
The Belarus Monarchist Association
Christmas 2024
The Abbey-Principality of San Luigi wishes everyone a very happy Christmas.
The Abbey-Principality of San Luigi 
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