Roman Catholic Diocese of Alessandria della Paglia Tags: Clerical Administrative Region, Diocese.The Diocese of Alessandria della Paglia (Latin: Dioecesis Alexandrinus Statiellorum) is a Roman Catholic ecclesiastical territory in Piedmont northern Italy. It is a suffragan of the diocese of Vercelli. thumbnail area (km2) 7.4e+08 country Italy Established 1175 patron Saint Baudolino province Roman Catholic Archdiocese of Vercelli Learn more... Loading...