Roman Catholic Diocese of Tursi-Lagonegro Tags: Clerical Administrative Region, Diocese.The Diocese of Tursi-Lagonegro (Latin: Dioecesis Tursiensis-Lacunerulonensis) is a Roman Catholic ecclesiastical territory in Basilicata southern Italy. It is a suffragan of the Archdiocese of Potenza-Muro Lucano-Marsico Nuovo. thumbnail area (km2) 2.509e+09 country Italy Established 11th century province Roman Catholic Archdiocese of Potenza-Muro Lucano-Marsico Nuovo Learn more... Loading...