Lista biskupów diecezjalnych Marco 325 Proculo 350–362 Pelino 362 Ciprio 363 Leone Sabino Eusebius Dionisio Giuliano I. 493 Prezioso 680 Magelpoto Paolo Teodosio 865–895 Johannes I. 952–980 Andrea 980–980 Paone 980–983 Gregor I. 987–996 Johannes II. 996–1038 Leonard Eustachius 1050–1071 Gregor II. 1074–1080 Godino 1085–1098 Badovino 1100 Nicola 1101–1105 Guglielmo II. 1105–1118 Bailardo 1122–1143 Lupo 1144–1172 Guglielmo III. 1173–1181 Pietro 1183–1196 Gerardo 1196–1212 Pellegrino I. 1216–1222 Giovanni III. 1224–1224 Giovanni Santo L. 1225–1226 Pietro Paparone 1231–1248 Pellegrino II. 1254–1286 Adenolfo 1288–1295 Andrea Pandone 1296–1304 Rodolfo 1304 Bartolomeo 1306–1319 Bertrando 1319–1333 Guglielmo Isardi 1333–1344 Guglielmo V.