Judicate of Arborea
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The Judicate of Arborea (; ; ) or the Kingdom of Arborea (; ; ) was one of the four independent judicates into which the island of
Sardinia Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia an ...
was divided in the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
. It occupied the central-west portion of the island, wedged between
Logudoro The Logudoro (; ) is a large historical region Sardinia, Italy. It is the namesake of the Logudorese dialect of Sardinian language, Sardinian, which covers a large area of northern-central Sardinia. The first denomination of the area is contai ...
to the north and east,
Cagliari Cagliari (, , ; ; ; Latin: ''Caralis'') is an Comune, Italian municipality and the capital and largest city of the island of Sardinia, an Regions of Italy#Autonomous regions with special statute, autonomous region of Italy. It has about 146,62 ...
to the south and east, and the
Mediterranean Sea The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...
to the west. To the northeast of Logudoro was
Gallura Gallura ( or ; ) is a region in North-Eastern Sardinia, Italy. The name ''Gallùra'' is allegedly supposed to mean "stony area". Geography Gallùra has an area of . It is from the Italian peninsula and from the French island of Corsica. ...
, with which Arborea had far less interaction. Arborea outlasted her neighbours, surviving well into the 15th century. At its greatest territorial extent it occupied the entire island except the cities of Alghero and Cagliari. The earliest known judicial seat was
Tharros Tharros (also spelled Tharras, , , ''Tárrai/Tárras''; ) was an ancient city and former bishopric on the west coast of Sardinia, Italy. It is currently a Latin Catholic titular see and an archaeological site near the village of San Giovanni d ...
, though
Oristano Oristano (; ) is an Italian city and (municipality), the capital of the Province of Oristano in the central-western part of the island of Sardinia. It is located on the northern part of the Campidano plain. It was established as the provincial ...
served as capital for most of its existence.


Origins

Sardinia was an imperial province of the
Byzantine Empire The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...
until the early 9th century, when the aggressive expansion and relentless piracy of the
Arabs Arabs (,  , ; , , ) are an ethnic group mainly inhabiting the Arab world in West Asia and North Africa. A significant Arab diaspora is present in various parts of the world. Arabs have been in the Fertile Crescent for thousands of yea ...
and
Berbers Berbers, or the Berber peoples, also known as Amazigh or Imazighen, are a diverse grouping of distinct ethnic groups indigenous to North Africa who predate the arrival of Arab migrations to the Maghreb, Arabs in the Maghreb. Their main connec ...
of
North Africa North Africa (sometimes Northern Africa) is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region. However, it is sometimes defined as stretching from the Atlantic shores of t ...
left the central authorities of the Empire unable to effectively defend or consistently govern the island. The local Byzantine magistrates, entitled ''iudici'', meaning "judges", were increasingly left to provide for their own administration and defense. A single and autonomous ''archontate'' was established in the island. Later in the 11th century, the single archontate fragmented into 4 ''judicates'', including Arborea. Maintaining the traditional forms and patterns of the imperial bureaucracy, the island's ''iudicati'', originally a type of administrative sub-division, became autonomous states ruled by ''iudices''. By the 11th century, the legal titles to these districts (like the provinces administered by ''
dux ''Dux'' (, : ''ducēs'') is Latin for "leader" (from the noun ''dux, ducis'', "leader, general") and later for duke and its variant forms (doge, duce, etc.). During the Roman Republic and for the first centuries of the Roman Empire, ''dux'' coul ...
'' ("Duke") and ''
comes ''Comes'' (plural ''comites''), translated as count, was a Roman title, generally linked to a comitatus or comital office. The word ''comes'' originally meant "companion" or "follower", deriving from "''com-''" ("with") and "''ire''" ("go"). Th ...
'' ("Count") in mainland
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) had become
hereditary Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic inform ...
or rotated amongst a few powerful clans. The first important Judge of Arborea was Marianus I (ruled 1060–1070) of the Thori family. In 1070, his successor, Orzocorre I, moved the capital from the ancient port of Tharros, which was exposed to Arab attacks, to
Oristano Oristano (; ) is an Italian city and (municipality), the capital of the Province of Oristano in the central-western part of the island of Sardinia. It is located on the northern part of the Campidano plain. It was established as the provincial ...
. Around the same time, Sardinia began to emerge from obscurity and come into the historian's view. Under the ambitious
Pope Gregory VII Pope Gregory VII (; 1015 – 25 May 1085), born Hildebrand of Sovana (), was head of the Catholic Church and ruler of the Papal States from 22 April 1073 to his death in 1085. He is venerated as a saint in the Catholic Church. One of the great ...
, then leading a papal reform, Sardinia was integrated into the wider Christendom. By the infusion of Western monasticism and Pisan ecclesiastic rule, she became involved in the conflicts and commerce of Europe.


Lacon-Gunale dynasty

Under
Constantine I Constantine I (27 February 27222 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a Constantine the Great and Christianity, pivotal ro ...
of the Lacon dynasty, Arborea paid tribute to the papacy and sponsored
Camaldolese The Camaldolese Hermits of Mount Corona () are a Catholic Church, Catholic monastic order of pontifical right for men founded by Romuald, St. Romuald. Its name is derived from the Holy Hermitage () in Camaldoli, high in the mountains of Tuscany, ...
monks in opposition to the monks of
Marseille Marseille (; ; see #Name, below) is a city in southern France, the Prefectures in France, prefecture of the Departments of France, department of Bouches-du-Rhône and of the Provence-Alpes-Côte d'Azur Regions of France, region. Situated in the ...
favoured by rival
Cagliari Cagliari (, , ; ; ; Latin: ''Caralis'') is an Comune, Italian municipality and the capital and largest city of the island of Sardinia, an Regions of Italy#Autonomous regions with special statute, autonomous region of Italy. It has about 146,62 ...
. Constantine paid homage to Pisa for his petty kingdom and his successor was his brother Comita II. When
Pope Innocent II Pope Innocent II (; died 24 September 1143), born Gregorio Papareschi, was head of the Catholic Church and ruler of the Papal States from 14 February 1130 to his death in 1143. His election as Pope was controversial, and the first eight years o ...
divided Sardinia between the sees of Pisa and
Genoa Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...
in 1133, Arborea fell to the former, but Comita, in the hope of furthering Arborean independence, allied with Genoa during the subsequent civil wars of that decade. In 1145, Comita was excommunicated by Baldwin, Archbishop of Pisa, and the Judicate of Arborea was nominally transferred to Logudoro. Comita's son and successor, Barison II, put Arborea back on good terms with Pisa. He married into the Aragonese nobility, creating ties to Spain which culminated in Sardinia falling to the
Crown of Aragon The Crown of Aragon (, ) ;, ; ; . was a composite monarchy ruled by one king, originated by the dynastic union of the Kingdom of Aragon and the County of Barcelona (later Principality of Catalonia) and ended as a consequence of the War of the Sp ...
some centuries later. In 1164, Barison paid the
Holy Roman Emperor The Holy Roman Emperor, originally and officially the Emperor of the Romans (disambiguation), Emperor of the Romans (; ) during the Middle Ages, and also known as the Roman-German Emperor since the early modern period (; ), was the ruler and h ...
Frederick Barbarossa Frederick Barbarossa (December 1122 – 10 June 1190), also known as Frederick I (; ), was the Holy Roman Emperor from 1155 until his death in 1190. He was elected King of Germany in Frankfurt on 4 March 1152 and crowned in Aachen on 9 March 115 ...
to have him crowned
King of Sardinia Sardinia is traditionally known to have been initially ruled by the Nuragic civilization, which was followed by Greek colonization, conquest by the Carthagians, Carthaginians, and occupied by the Ancient Rome, Romans for around a thousand years, ...
, but the emperor revoked that title the next year, though Barison continued to employ it. He finally left Pisa for Genoa, but his legacy was civil war. His son
Peter I Peter I may refer to: Religious hierarchs * Saint Peter (c. 1 AD – c. 64–68 AD), a.k.a. Simon Peter, Simeon, or Simon, apostle of Jesus * Pope Peter I of Alexandria (died 311), revered as a saint * Peter I of Armenia (died 1058), Catholicos ...
and grandson
Hugh I Hugh I may refer to: * Hugh I of Lusignan (c. 885–c. 930) * Hugh I, Count of Maine (died 933) * Hugh I, Viscount of Châteaudun (died 989 or after) * Hugh I of France (c. 939–996), a.k.a. Hugh Capet, first King of the Franks of the Capetian dy ...
finally divided the kingdom by the Treaty of Oristano (1192), but in the end Hugh's line, the House of Cervera (or
Bas Bas may refer to: People * Bas (name), a given name and a surname * Bas (rapper) (born 1987) Chemistry * Boron arsenide (BAs), a chemical compound * Barium sulfide (BaS), a chemical compound Other uses * ''bas'' (French for "low"), as in bas ...
), succeeded in establishing themselves.


De Serra-Bas dynasty

While Peter II, son of Hugh, has been accused by historians of impoverishing his realm of glory, his son Marianus II expanded it substantially, even briefly ruling over a majority of the island. During the final decades of the 13th century, three other ''giudicati'' fell into the hands of either Pisa or Genoa or one of their great families, but Arborea remained independent. Hugh II (ruled 1321 – 1336), great-grandson of Marianus II, headed up a faction which favoured
James II of Aragon James II (Catalan: ''Jaume II''; Aragonese: ''Chaime II;'' 10 April 1267 – 2 or 5 November 1327), called the Just, was the King of Aragon and Valencia and Count of Barcelona from 1291 to 1327. He was also the King of Sicily (as James I) f ...
, who had been promised the island by the pope, as overlord. He supported the ''Infante'' Alfonso in his campaign (1323 – 1324) to conquer the island from Pisa. In 1336, Hugh II was succeeded by his son
Peter III Peter III may refer to: Politics * Peter III of Bulgaria (ruled in 1072) * Peter III of Aragon (1239–1285) * Peter III of Arborea (died 1347) * Peter III Aaron (died 1467) * Pedro III of Kongo (ruler in 1669) * Peter III of Russia (1728–1762) ...
(died 1345). His brother Marianus IV (ruled 1353 – 1375) was the only Sardinian ruler to be known as "the Great". He was educated at the
Crown of Aragon The Crown of Aragon (, ) ;, ; ; . was a composite monarchy ruled by one king, originated by the dynastic union of the Kingdom of Aragon and the County of Barcelona (later Principality of Catalonia) and ended as a consequence of the War of the Sp ...
's royal court, but later turned against his cultural allies and led a victorious revolt against the aragonese invaders
Sardinian–Aragonese war The Sardinian–Aragonese war was a late medieval conflict lasting from 1353 to 1420. The fight was over supremacy of the land and took place between the Judicate of Arborea, allied with the Sardinian branch of the Doria (family), Doria family an ...
. With Marianus IV the great, a period of splendour commenced in the Kingdom of Arborea. Oral traditions were codified and new legislation enacted. Army and tactics were reformed. With the exception of Cagliari,
Alghero Alghero (; ; ; ) is a city of about 45,000 inhabitants in the Italian province of Sassari in the north west of the island of Sardinia, next to the Mediterranean Sea. The city's name comes from ''Aleguerium'', which is a mediaeval Latin word m ...
, and
Sassari Sassari ( ; ; ; ) is an Italian city and the second-largest of Sardinia in terms of population with 120,497 inhabitants as of 2025, and a functional urban area of about 260,000 inhabitants. One of the oldest cities on the island, it contains ...
(then under Brancaleone Doria), Marianus conquered the whole of the island, making Arborea the strongest any of the island's judicates had ever been. Marianus was succeeded by his son Hugh III, who furthered his father's legislation and died without descendants in 1383. A republic was proclaimed, but the crown was claimed by Eleanor De Serra Bas, elder sister of Hugh III, who was married to Brancaleone Doria. She succeeded to power in 1387. Eleanor was technically regent on behalf of her sons
Frederick Frederick may refer to: People * Frederick (given name), the name Given name Nobility = Anhalt-Harzgerode = * Frederick, Prince of Anhalt-Harzgerode (1613–1670) = Austria = * Frederick I, Duke of Austria (Babenberg), Duke of Austria fro ...
and, subsequently, Marianus V. She died in 1404 and Marianus in 1407; after the latter's death the succession passed to William III of Narbonne, grandson of Beatrice, Eleanor's sister. He defended the island against the troops of King
Martin of Aragon Martin the Humane (29 July 1356 – 31 May 1410), also called the Elder and the Ecclesiastic, was King of Aragon, Valencia, Sardinia and Corsica and Count of Barcelona from 1396 and King of Sicily from 1409 (as Martin II). He failed to secure th ...
, but
Martin I of Sicily Martin I of Sicily (c. 1374/1376 – 25 July 1409), called the Younger, was King of Sicily from his marriage to Maria, Queen of Sicily, Queen Maria in 1390 until his death in 1409. Martin's father was the future King Martin I of Aragon, and hi ...
(son of Martin of Aragon) vanquished them in the
Battle of Sanluri The Battle of Sanluri was fought on 30 June 1409 between the armies of the Sardinian Judicate of Arborea and the Aragonese-Sicilian army led by the King Martin I of Sicily.Garrido and Valls, Josep-David. Life and reign of Martí I. Rafael Dalmau ...
on 30 June 1409. Martin's sudden death made possible a recovery and occupation of Sassari and part of Logudoro as well as reclamation of the title of Judge of Arborea by William. However, all the Arborean castles fell after a renewed Aragonese offensive; Oristano fell in March 1410 without resistance.
Leonard Cubell Leonard or ''Leo'' is a common English masculine given name and a surname. The given name and surname originate from the Old High German '' Leonhard'' containing the prefix ''levon'' ("lion") from the Greek Λέων ("lion") through the Latin '' ...
laid claim to the title of Judge of Arborea, but was compelled in Oristano by
Pedro de Torrelles Pedro is a masculine given name. Pedro is the Spanish language, Spanish, Portuguese language, Portuguese, and Galician language, Galician name for ''Peter (given name), Peter''. Its French equivalent is Pierre while its English and Germanic fo ...
to renounce his claim, after which he was given the
Marquisate of Oristano A marquess (; ) is a nobleman of high hereditary rank in various European peerages and in those of some of their former colonies. The German-language equivalent is Markgraf (margrave). A woman with the rank of a marquess or the wife (or wid ...
and County of
Goceano The Goceano () is a historical and geographical region of center-north of Sardinia island, Italy. It covers a surface of 480 km2 and has a population of 13,000 inhabitants (27 inhabitants/km2). It is located inside the Province of Sassari, ...
. In 1420,
Alfonso V of Aragon Alfonso the Magnanimous (Alfons el Magnànim in Catalan language, Catalan) (139627 June 1458) was King of Aragon and King of Sicily (as Alfons V) and the ruler of the Crown of Aragon from 1416 and King of Naples (as Alfons I) from 1442 until his ...
purchased for 100,000
gold florins The Florentine florin was a gold coin (in Italian ''Fiorino d'oro'') struck from 1252 to 1533 with no significant change in its design or metal content standard during that time. It had 54 grains () of nominally pure or 'fine' gold with a pu ...
the rights of the viscounts of Narbonne. Later, the Aragonese governor,
Leonardo Alagon Leonardo Alagon, even Alagón or de Alagón, (1436 in Oristano – 1494 in Xativa), was the last marquis of Oristano (1470–1478). Biography Marquis of Oristano and Count of Goceano In 1470, following the death of the Marquis of Oristano Salvat ...
, rebelled and was also able to beat the king's troops at Uras in 1470. However, his defeat at the Battle of Macomer in 1478 put a definitive end to the independence of Arborea and of Sardinia as a whole.


Curatoriae

Arborea was divided into 13 or, at times, 14 or ''partes'' (sing. and ). These were the main administrative regions, governed by (curators) under the judge. The subdivisions of the were the , the inhabited centres (villages) that, altogether, probably comprised 100,000 inhabitants. The were an inheritance from Byzantine tradition and are still recognised today as "historic regions". The fourteen of Arborea were: *
Barbagia di Belvì Barbagia (; or ) is a geographical, cultural and natural region of inner Sardinia, contained for the most part in the province of Nuoro and Ogliastra and located alongside the Gennargentu massif. The name comes from Cicero, who described the ...
* Barbagia d'Ollolai * Barigadu * Bonorzuli *Campidano di Cabras *Campidano di Milis *Campidano di Simaxis * Guilcier * Mandrolisai *
Marmilla Marmilla is a natural region of southern-central Sardinia, Italy. Etymology The name "Marmilla" comes from the vast rounded hills, probably resembling udders (see Marmilla castle in Las Plassas). Another hypothesis is that according to which given ...
*Montis *
Usellus Usellus (; Latin: ''Uselis'' or ''Usellis'') is a town, comune (municipality) and former bishopric in the Province of Oristano in the Italian region Sardinia. Usellus borders the following ''comuni'': Albagiara, Ales, Gonnosnò, Mogorella, Vi ...
*
Valenza Valenza ( or ''Valensá'') is a ''comune'' (municipality) in the Province of Alessandria in the Italian region Piedmont, located about east of Turin and about north of Alessandria, in the extreme Montferrat’s offshoots, in the Lombardy’s ...
* Brabaxiana


See also

* List of kings or ''judges'' of Arborea


References


Bibliography

*''Dizionario Biografico degli Italiani''. Rome, 1963 – present. *Nowé, Laura Sannia. ''Dai "lumi" dalla patria Italiana: Cultura letteraria sarda''. Mucchi Editore: Modena, 1996. *Day, John. ''La Sardegna sotto la dominazione pisano-genovese dal secolo XI al secolo XIV''. UTET: Turin, 1987.


Notes

{{Notelist
Arborea Arborea is a town and ''comune'' in the province of Oristano, Sardinia, Italy, whose economy is largely based on agriculture and cattle breeding with production of vegetables, rice, fruit and milk (notably the local milk product Arborea). Histo ...
History of Sardinia Medieval history of Italy Italian states Christian states 2nd millennium in Italy Former monarchies of Europe