| Date | From | To |
|---|
| 9th Century | | | Diocese of Caiazzo, Italy
| Erected |
| 9th Century | | | Diocese of Bar, Serbia and Montenegro
| Erected |
| 9th Century | | | Diocese of Marsi, Italy
| Erected |
| 9th Century | | | Diocese of Bitonto, Italy
| Erected |
| 9th Century | | | Diocese of Beograd, Serbia and Montenegro
| Erected |
| 9th Century | | | Diocese of Tinos, Greece
| Erected |
| 9th Century | | | Diocese of Pult, Albania
| Erected |
| 9th Century | | | Diocese of Montefeltro, Italy
| Erected |
| 9th Century | | | Diocese of Santiago de Compostela, Spain
| Erected |
| 9th Century | | | Diocese of Gravina, Italy
| Erected |
| 9th Century | | | Diocese of Matera, Italy
| Erected |
