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



























































The Abbey-Principality of San Luigi is pleased to announce new partnerships with the Global Health Service. The Global Health Service is established as a nonprofit humanitarian provider in Sofia, Bulgaria, under the presidency of Professor Pasquale Sorrentino.




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 








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