diocese | Diocese | Roman Catholic Diocese of San Carlos de Ancud | Roman Catholic Diocese of Orange | Diocese of Winchester | Diocese of Lincoln | Diocese of Chichester | Roman Catholic Diocese of Urdaneta | Episcopal Diocese of Virginia | Diocese of Zealand | Diocese of Newcastle | Diocese of London | Roman Catholic Diocese of Nantes | Diocese of Hereford | Roman Catholic Diocese of Zamora in Mexico | Roman Catholic Diocese of Sacramento | Roman Catholic Diocese of Perpignan-Elne | Roman Catholic Diocese of Penang | Roman Catholic Diocese of Hong Kong | Roman Catholic Diocese of Dubrovnik | Roman Catholic Diocese of Dallas | Roman Catholic Diocese of Buffalo | Episcopal Diocese of Kentucky | Episcopal Diocese of Fond du Lac | Diocese of Tuam, Killala and Achonry | Diocese of Lund | Diocese of Exeter | Roman Catholic Diocese of Trenton | Roman Catholic Diocese of Scranton | Roman Catholic Diocese of Sault Sainte Marie, Ontario |
In 1540 under the episcopate of Rinaldo de' Cancellieri, it was united to the Diocese of Bisaccia (the ancient Romulea); it appears first as a bishopric in 1179.