Roman Catholic Diocese of Crema Tags: Clerical Administrative Region, Diocese.The Diocese of Crema (Latin: Dioecesis Cremensis) is a Roman Catholic ecclesiastical territory in northern Italy existing since 1579. It is suffragan to the Archdiocese of Milan. Its seat is Crema Cathedral. thumbnail area (km2) 2.76e+08 country Italy Established 11 April 1579 ( years ago) province Roman Catholic Archdiocese of Milan Learn more... Loading...