Roman Catholic Diocese of Šibenik Tags: Clerical Administrative Region, Diocese.The Roman Catholic Diocese of Šibenik (Croatian: Šibenska biskupija; Latin: Dioecesis Sebenicensis) is a diocese located in the city of Šibenik in the Ecclesiastical province of Split-Makarska in Croatia. thumbnail country Croatia Established 1 May 1298 jurisdiction Diocese patron Michael (archangel) province Roman Catholic Archdiocese of Split-Makarska Learn more... Loading...