Roman Catholic Archdiocese of Lucca Tags: Clerical Administrative Region, Diocese.The Italian Catholic Archdiocese of Lucca (Latin: Archidioecesis Lucensis) dates back as a diocese to the 1st century; it became an archdiocese in 1726. It has no suffragan dioceses and is directly subject to the Holy See. thumbnail area (km2) 1.52e+09 country Italy Established 1st century patron Paulinus of Antioch province Holy See Learn more... Loading...