The Italian Catholic Church is part of the global Roman Catholic Church, under the leadership of the Pope, curia in Rome, and the Conference of Italian Bishops. In addition to Italy, two other sovereign nations are included in Italian-based dioceses, San Marino and Vatican City. There are 225 dioceses in the Italian Catholic Church, see further in this article and in the article List of the Roman Catholic dioceses in Italy. Even though by law Vatican City is not part of Italy, it is in Rome, and along with Latin, Italian is the most spoken and second language of the Roman Curia.