| Date | From | To |
|---|
| 11th Century | | | Diocese of Acerra, Italy
| Erected |
| 11th Century | | | Diocese of Ariano, Italy
| Erected |
| 11th Century | | | Diocese of Lacedonia, Italy
| Erected |
| 11th Century | | | Diocese of Avila, Spain
| Erected |
| 11th Century | | | Diocese of Ostuni, Italy
| Erected |
| 11th Century | Diocese of Cagliari, Italy
| Elevated | Archdiocese of Cagliari, Italy
| Elevated |
| 11th Century | | | Diocese of Boiano, Italy
| Erected |
| 11th Century | | | Diocese of Castellaneta, Italy
| Erected |
| 11th Century | | | Diocese of Ascoli Satriano, Italy
| Erected |
| 11th Century | | | Diocese of Monopoli, Italy
| Erected |
| 11th Century | Diocese of Santa Severina, Italy
| Elevated | Archdiocese of Santa Severina, Italy
| Elevated |
| 11th Century | | | Diocese of Bobbio, Italy
| Erected |
| 11th Century | | | Diocese of Gyõr, Hungary
| Erected |
| 11th Century | | | Diocese of Venafro, Italy
| Erected |
| 11th Century | | | Diocese of Vieste, Italy
| Erected |
| 11th Century | | | Diocese of Melfi, Italy
| Erected |
| 11th Century | | | Diocese of Rapolla, Italy
| Erected |
| 11th Century | | | Diocese of Mileto, Italy
| Erected |
| 11th Century | | | Diocese of Giovinazzo, Italy
| Erected |
| 11th Century | | | Diocese of Terlizzi, Italy
| Erected |
| 11th Century | | | Diocese of Sarno, Italy
| Erected |
| 11th Century | | | Archdiocese of Oristano, Italy
| Erected |
| 11th Century | Diocese of Otranto, Italy
| Elevated | Archdiocese of Otranto, Italy
| Elevated |
| 11th Century | Diocese of Palermo, Italy
| Elevated | Archdiocese of Palermo, Italy
| Elevated |
| 11th Century | | | Diocese of Muro Lucano, Italy
| Erected |
| 11th Century | Diocese of Reggio Calabria, Italy
| Elevated | Archdiocese of Reggio Calabria, Italy
| Elevated |
| 11th Century | | | Diocese of Acerno, Italy
| Erected |
| 11th Century | Diocese of Conza, Italy
| Elevated | Archdiocese of Conza, Italy
| Elevated |
| 11th Century | | | Diocese of Nusco, Italy
| Erected |
| 11th Century | | | Diocese of San Severo, Italy
| Erected |
| 11th Century | | | Diocese of Policastro, Italy
| Erected |
| 11th Century | | | Diocese of Anglona, Italy
| Erected |
| 11th Century | Diocese of Trani, Italy
| Elevated | Archdiocese of Trani, Italy
| Elevated |
| 11th Century | | | Diocese of Tricarico, Italy
| Erected |
| 11th Century | | | Diocese of Vác, Hungary
| Erected |
| 11th Century | | | Territorial Abbey of Subiaco, Italy
| Erected |
| 11th Century | Diocese of Acerenza, Italy
| Elevated | Archdiocese of Acerenza, Italy
| Elevated |
| 11th Century | | | Diocese of Andria, Italy
| Erected |
| 11th Century | Diocese of Matera, Italy
| Elevated | Archdiocese of Matera, Italy
| Elevated |
| 11th Century | | | Diocese of Bosnia, Croatia
| Erected |
| 11th Century | | | Apostolic Chamber, Roman Curia
| Erected |
