At the end of the 19th century, Pope Leo XIII wanted to establish some sort of union between the many Benedictine congregations throughout the world. He chose to set up a Confederation, with each Congregation retaining its legal autonomy. The head of the Confederation is the Abbot Primate, who is elected by all the Benedictine abbots throughout the world. He lives at Saint Anselmo's in Rome. The Confederation is made up of nineteen Benedictine Congregations.