Chapel of the Penitents, Monaco
Per the Constitution of Monaco (Art. 9) Roman Catholicism is the official church of Monaco, and is the majority religion. Religious freedom is also guaranteed by the constitution.
The Roman Catholic Church in Monaco is part of the worldwide Roman Catholic Church, under the spiritual leadership of the Pope and curia in Rome.
The Archdiocese of Monaco is part of the Catholic Church of France and has been so from the beginning of its history. The country forms a single archdiocese.