Giudice of Arborea

The Giudici (from the Latin iudices or judikes, "judges," the title of the Byzantine officials left behind when Imperial power receded in the West.)) of Arborea were the local rulers of the west of Sardinia during the Middle Ages. Theirs was the longest-lasting giudicato, surviving as an independent state until the fifteenth century.

House of Lacon Gunale

• Gonario I (c. 1015 – c. 1038)
• Barisone I (c. 1038 – c. 1060)
• Marianus I (c. 1060 – c. 1070)
• Orzocorre I (c. 1070 – c. 1100)
• Torbeno (c. 1100)
• Orzocorre II (c. 1100 – c. 1122)
• Comita I

House of Lacon Serra

• Gonario II
• Constantine I (c1101 – 1131)
• Comita II (1131 – 1147)
• Orzocorre III, co-ruler
• Barisone II (1147 – 1185)
• Hugh I (1185 – 1211), in opposition to Peter until 1192
• Peter I (1185 – 1214), in opposition to Hugh until 1192
• Peter II (1211 – 1241), sole ruler from 1217
• Barisone III (1214 – 1217)

House of Bas Serra (Baux Serra)

• Marianus II (1241 – 1297)
  • William of Capraia (1241 – 1264)
  • Nicholas of Capraia (1264 – 1274)
  • Anselm of Capraia (1274 – 1287)
• John (1297 – 1304)
• Andrew (1304 – 1308)
• Marianus III (1308 – 1321)
• Hugh II (1321 – 1336)
• Peter III (1336 – 1347)
• Marianus IV (1347 – 1376)
• Hugh III (1376 – 1383)

House of Doria Bas (Doria Baux)

• Frederick (1383 – 1387)
  • Eleanor (1383 – 1387), Regent first time
• Marianus V (1387 – 1407)
  • Eleanor (1387 – 1402), Regent second time

House of Narbonne

• William (1407 – 1410)
  • Brancaleone Doria (1408 – 1409), regent

Sold to Crown of Aragon. Following were titular rulers.

• Leonard Cubell (regent: 1407 – 1408 and 1409 – 1410, giudice: 1410 – 1427), Margrave of Oristano and Count of Goceano
• Antonio Cubell (1427 – 1463), Margrave of Oristano and Count of Goceano
• Salvador Cubell (1463 – 1470), Margrave of Oristano and Count of Goceano
• Leonard de Alagona (1470, claimed the positions of Margrave of Oristano and Count of Goceano, raised a revolt

Rights passed to the House of Alagona, lords of Sastago and Pina, whom the Aragonese deposed as result of the revolt.