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The Judicates (, or in Sardinian, in
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
, or in
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance languag ...
), in English also referred to as Sardinian Kingdoms, Sardinian Judgedoms or Judicatures, were independent states that took power in
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 ...
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 ...
, between the eleventh and fifteenth centuries. They were sovereign states with '' summa potestas'', each with a ruler called judge ( in Sardinian), with the powers of a king.


Historical causes of the advent of the kingdoms

After a relatively brief
Vandal The Vandals were a Germanic people who were first reported in the written records as inhabitants of what is now Poland, during the period of the Roman Empire. Much later, in the fifth century, a group of Vandals led by kings established Vandal ...
occupation (456–534), Sardinia was a 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 ...
from 535 until the eighth century. After 705, with the rapid Arab expansion,
Saracen upright 1.5, Late 15th-century German woodcut depicting Saracens ''Saracen'' ( ) was a term used both in Greek and Latin writings between the 5th and 15th centuries to refer to the people who lived in and near what was designated by the Rom ...
pirates from
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 ...
began to raid the island and encountered no effective opposition by the
Byzantine army The Byzantine army was the primary military body of the Byzantine Empire, Byzantine armed forces, serving alongside the Byzantine navy. A direct continuation of the East Roman army, Eastern Roman army, shaping and developing itself on the legac ...
. In 815, Sardinian ambassadors requested military assistance from the Carolingian Emperor
Louis the Pious Louis the Pious (; ; ; 16 April 778 – 20 June 840), also called the Fair and the Debonaire, was King of the Franks and Holy Roman Emperor, co-emperor with his father, Charlemagne, from 813. He was also King of Aquitaine from 781. As the only ...
. In 807, 810–812, and 821–822 the Arabs of Spain and North Africa tried to invade the island but the Sardinians resisted several attacks. This defence was so effective that in a letter in 851
Pope Leo IV Pope Leo IV (died 17 July 855) was the bishop of Rome and ruler of the Papal States from 10 April 847 to his death in 855. He is remembered for repairing Roman churches that had been damaged during the Arab raid against Rome, and for building the ...
asked the ('judge of the province') of Sardinia, based in Caralis, for aid in the defense of
Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
. With the fall of the
Exarchate of Africa The Exarchate of Africa was a division of the Byzantine Empire around Carthage that encompassed its possessions on the Western Mediterranean. Ruled by an exarch (viceroy), it was established by the Emperor Maurice in 591 and survived until t ...
, based in
Carthage Carthage was an ancient city in Northern Africa, on the eastern side of the Lake of Tunis in what is now Tunisia. Carthage was one of the most important trading hubs of the Ancient Mediterranean and one of the most affluent cities of the classic ...
, at the end of the seventh century, and especially with the emergence of the Arab presence in Sicily (827), Sardinia remained disconnected from the core lands 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 ...
and had, out of necessity, become economically and militarily independent.


The birth of the four kingdoms

The almost total absence of historical sources does not allow certainty surrounding the date of the passage from Byzantine central authority to self-government in Sardinia. It is believed that at some point the or
Archon ''Archon'' (, plural: , ''árchontes'') is a Greek word that means "ruler", frequently used as the title of a specific public office. It is the masculine present participle of the verb stem , meaning "to be first, to rule", derived from the same ...
of Sardinia, residing in Caralis, had complete control of the island. He appointed, in the most strategic area for the defense of the coast, the (
lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
), belonging to his family, the Lacon-Gunale, who became substantially autonomous from Caralis over time; this was probably the action that precipitated the birth of the kingdoms, or ''judgedoms''. The first incontrovertible source that cites the existence of four kingdoms is the
epistle An epistle (; ) is a writing directed or sent to a person or group of people, usually an elegant and formal didactic letter. The epistle genre of letter-writing was common in ancient Egypt as part of the scribal-school writing curriculum. The ...
sent by
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 ...
from
Capua Capua ( ; ) is a city and ''comune'' in the province of Caserta, in the region of Campania, southern Italy, located on the northeastern edge of the Campanian plain. History Ancient era The name of Capua comes from the Etruscan ''Capeva''. The ...
on October 14, 1073 to the Sardinian judges Orzocco of Cagliari, Orzocco d'Arborea, Marianus of Torres and Constantine of Gallura; however their autonomy was already clear in a later letter of Pope John VIII (872) in which he referred to them as ("princes of Sardinia"). The known medieval giudicati were: * Kingdom of Cagliari with capital in Santa Igia * Kingdom of Arborea with capital in
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 ...
, * Kingdom of Gallura with capital in Civita, * Kingdom of Torres with capital in
Porto Torres Porto Torres (; ) is a (municipality) and a city of the Province of Sassari in north-west of Sardinia, Italy. Founded during the 1st century BC as , it was the first Roman colony of the entire Sardinia, island. It is situated on the coast at abo ...
, Ardara and then
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 ...
. Each of the four States had fortified borders to protect their political and commercial interests, as well their own laws, administration and emblems.


Governments

The administrative organization of the ''judgedoms'' differed significantly from the feudal forms existing in the rest of
medieval Europe 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 World history (field), global history. It began with the fall of the West ...
as their institutions were closer to those of the territories of the Byzantine Empire, although with local peculiarities that some scholars consider of Nuragic derivation. In the international context of 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 ...
, the ''judgedoms'' were characterized by semi-democratic institutions such as the which in turn elected their own representatives to the parliamentary assizes called .


The Corona de Logu and the central council

The central government and the entire Judiciary were ruled substantially by the judge. The king did not have possession of the land nor was he the repository of sovereignty since this was formally held by the , a council of elders (representatives of the administrative districts - ) and high priests. They appointed the ruler and attributed the supreme power to him, while maintaining the power to ratify acts and agreements related to the entire kingdom. During (coronation ceremony) in the capital, a representative of each , members of the high clergy, the castle lords, two representatives of the capital elected by delegates from , came together. Then the was crowned with a mixed-elected hereditary system following the direct male line and, only in the alternative, the female line. The judge ruled on the basis of a covenant with the people (the ). The sovereign could be dethroned and even, in cases of serious acts of tyranny and oppression, executed legitimately by the same people, without this prejudging the inheritance of the title within the same ruling dynasty.


Judges

The judge was not an absolute ruler in the sense of later absolutism—at least in form: he could not declare war or sign a peace treaty without the consent of the . However, that was composed primarily of the nobility's relatives and, therefore, linked by common interests. The succession to the throne was dynastic but in some case there was the possibility of election by the .


The judicial chancellery

In the government of the territory, the Judge was assisted by the Chancellery. The sovereign authority was in fact formalized with the drafting of official acts called paper, written by the statal chancellor, usually a bishop or at least a senior member of the clergy, assisted by other officials called .


Local administration


Curadorias

The territory of various kingdoms was divided into , administrative districts of varying sizes formed by urban and rural villages, dependent on a capital which housed the . These administrators, aided especially by (judges) and a council the , represented the judicial authority locally and tended to the public property of the Crown. The appointed for each village was part of the a (the modern equivalent of a
mayor In many countries, a mayor is the highest-ranking official in a Municipal corporation, municipal government such as that of a city or a town. Worldwide, there is a wide variance in local laws and customs regarding the powers and responsibilitie ...
) with administrative and judicial powers, and direct responsibility for the successful actions of land management.


Law

The ''Cartas de Logu'' are collections of penal, public, civil and land regulations of great importance, in force in the various Giudicati. Unfortunately, only a few parts of the ''Carta Caralitana'' have been preserved. The Carta de Logu of the Giudicato of Arborea marks, towards the end of the fourteenth century, the birth of a rule of law by Mariano IV first and then by his daughter Eleonora, who extended the scope of the rules to adapt them to a changed reality in social conditions. The Chart is written in Sardinian (of the Logudorese variety) and from this we can deduce the judicial intent to actually make it known to citizens in order to make them aware of lawful and unlawful behaviors, with the consequent criminal implications. A situation of legal certainty is therefore defined. The chart survived, albeit with some difficulty, the judicial period and remained in force in the Spanish and Savoyard era until the enactment of the Code of Carlo Felice in April 1827. From the study of the Chart we can deduce a great attention of the Giudicati towards the protection of the safety of the countryside and agricultural production, including
horse breeding Horse breeding is reproduction in horses, and particularly the human-directed process of selective breeding of animals, particularly purebred horses of a given Horse breed, breed. Planned matings can be used to produce specifically desired chara ...
and
leather Leather is a strong, flexible and durable material obtained from the tanning (leather), tanning, or chemical treatment, of animal skins and hides to prevent decay. The most common leathers come from cattle, sheep, goats, equine animals, buffal ...
production, even to the detriment of sheep farming. This denotes a great attention towards the productive base which supports the efforts of the enemies in the struggle for the independence of Sardinia. The Condaghes are also of great importance for the study of the judicial period between the 11th and 13th centuries. Term of Byzantine origin (''kontakion'' - stick on which cards sewn together were rolled up) which defines the register on which the parchments of the deeds of donation to monasteries or other ecclesiastical bodies were transcribed. In them the sums of money, the servants, the maids, the cultivated lands, the vineyards, the wooded areas (the salts), the pastures and the livestock donated by the local nobility were reported in great detail. From the Condaghes it was possible to reconstruct a large part of the judicial dynamics known to us as well as being the most ancient evidence of the ancient Sardinian vernacular.


Judicial army

The Sardinian ''judicial'' armies were composed of troops made up of soldiers and free citizens, subject to periodic rotation. In an emergency forced conscription was used. The elite corps was made up of so-called , chosen riders who served under the command of the , the commander in charge of the security of the sovereign. The main armaments were the sword,
chain mail Mail (sometimes spelled maille and, since the 18th century, colloquially referred to as chain mail, chainmail or chain-mail) is a type of armour consisting of small metal rings linked together in a pattern to form a mesh. It was in common milita ...
, the shield, the helmet, and the , a weapon similar to the ancient , the Roman javelin. The militias of the ground and the infantry () used a shorter version of this same weapon. Besides the use of spears and shields, another common weapon was the , a sword with a bone handle and curved blade, between 50 and 70 cm long which was still in use, in a more contained dimension, until the end of nineteenth century. In Sardinia a type of
longbow A longbow is a type of tall bow that makes a fairly long draw possible. Longbows for hunting and warfare have been made from many different woods in many cultures; in Europe they date from the Paleolithic era and, since the Bronze Age, were mad ...
was made, and over time the use of the
crossbow A crossbow is a ranged weapon using an Elasticity (physics), elastic launching device consisting of a Bow and arrow, bow-like assembly called a ''prod'', mounted horizontally on a main frame called a ''tiller'', which is hand-held in a similar f ...
spread. In case of conflict judges often used mercenary troops, such as the dreaded
Genoese crossbowmen The Genoese crossbowmen () were a famous military corps of the Middle Ages, which acted both in defense of the Republic of Genoa and as a mercenary force for other Italian or European powers. Armed with crossbows, they fought both on land and ...
.


Culture


Religion

Christianity Christianity is an Abrahamic monotheistic religion, which states that Jesus in Christianity, Jesus is the Son of God (Christianity), Son of God and Resurrection of Jesus, rose from the dead after his Crucifixion of Jesus, crucifixion, whose ...
spread throughout most of the island in the early centuries, excluding much of the Barbagia region. At the end of the sixth century
Pope Gregory I Pope Gregory I (; ; – 12 March 604), commonly known as Saint Gregory the Great (; ), was the 64th Bishop of Rome from 3 September 590 until his death on 12 March 604. He is known for instituting the first recorded large-scale mission from Ro ...
reached an agreement with Hospito, chief of the , that guaranteed the conversion of his people from
paganism Paganism (, later 'civilian') is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Christianity, Judaism, and Samaritanism. In the time of the ...
to Christianity. Since Sardinia was in the political sphere of the Byzantine Empire, it developed an array of Greek and
Eastern Christianity Eastern Christianity comprises Christianity, Christian traditions and Christian denomination, church families that originally developed during Classical antiquity, classical and late antiquity in the Eastern Mediterranean region or locations fu ...
traits as a result of evangelisation by
Basilian monks Basilian monks are Greek Catholic monks who follow the rule of Basil the Great, bishop of Caesarea (330–379). The term 'Basilian' is typically used only in the Catholic Church to distinguish Greek Catholic monks from other forms of monastic ...
. The Sardinian Church was an
autocephalous Autocephaly (; ) is the status of a hierarchical Christian church whose head bishop does not report to any higher-ranking bishop. The term is primarily used in Eastern Orthodox and Oriental Orthodox churches. The status has been compared with t ...
institution for five centuries, independent from both the Byzantine and the
Roman Curia The Roman Curia () comprises the administrative institutions of the Holy See and the central body through which the affairs of the Catholic Church are conducted. The Roman Curia is the institution of which the Roman Pontiff ordinarily makes use ...
. In the eleventh century, after the schism of 1054, the , according to
Pope Alexander II Pope Alexander II (1010/1015 – 21 April 1073), born Anselm of Baggio, was the head of the Roman Catholic Church and ruler of the Papal States from 1061 to his death in 1073. Born in Milan, Anselm was deeply involved in the Pataria reform mo ...
, began a policy for the development of Western monasticism on the island, with the aim of a wider dissemination of culture but also of new techniques for cultivating the land. The immigration of monastics to the island was fueled by donated funds, and local churches were built by the ''judicial'' aristocracy. However, there were still strong ties with the Eastern liturgy. In 1092 a
papal bull A papal bull is a type of public decree, letters patent, or charter issued by the pope of the Catholic Church. It is named after the leaden Seal (emblem), seal (''bulla (seal), bulla'') traditionally appended to authenticate it. History Papal ...
expressly abolished the autonomy and autocephaly of the Church of Sardinia, which was placed under the primacy of the Archbishop of Pisa. The first act of donation was made in 1064 by Barisone I of Torres who gave the
Benedictine The Benedictines, officially the Order of Saint Benedict (, abbreviated as O.S.B. or OSB), are a mainly contemplative monastic order of the Catholic Church for men and for women who follow the Rule of Saint Benedict. Initiated in 529, th ...
monks of
Monte Cassino The Abbey of Monte Cassino (today usually spelled Montecassino) is a Catholic Church, Catholic, Benedictines, Benedictine monastery on a rocky hill about southeast of Rome, in the Valle Latina, Latin Valley. Located on the site of the ancient ...
a large area of its territory with churches (including the Byzantine church of Nostra Segnora de Mesumundu), not far from the then capital of Ardara. For several centuries afterwards representatives of many religious orders including the monks of the Abbey of Montecassino, the
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, ...
, the Vallombrosians, the Vittorini 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 ...
, the
Cistercians The Cistercians (), officially the Order of Cistercians (, abbreviated as OCist or SOCist), are a Catholic religious order of monks and nuns that branched off from the Benedictines and follow the Rule of Saint Benedict, as well as the contri ...
of
Bernard of Clairvaux Bernard of Clairvaux, Cistercians, O.Cist. (; 109020 August 1153), venerated as Saint Bernard, was an abbot, Mysticism, mystic, co-founder of the Knights Templar, and a major leader in the reform of the Benedictines through the nascent Cistercia ...
arrived and settled in Sardinia. As a result of this,
Romanesque architecture Romanesque architecture is an architectural style of medieval Europe that was predominant in the 11th and 12th centuries. The style eventually developed into the Gothic style with the shape of the arches providing a simple distinction: the Ro ...
flourished in the island.


Language

Byzantine Greek Medieval Greek (also known as Middle Greek, Byzantine Greek, or Romaic; Greek: ) is the stage of the Greek language between the end of classical antiquity in the 5th–6th centuries and the end of the Middle Ages, conventionally dated to the F ...
was used as an administrative language during the Byzantine period, but fell into disuse.
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
, which had long been the language of the native population, developed into the
Sardinian language Sardinian or Sard ( , , , , or , ) is a Romance languages, Romance language spoken by the Sardinians on the Western Mediterranean island of Sardinia. The original character of the Sardinian language among the Romance idioms has long been know ...
and became the official language. It was also used in legal and administrative documents such as the , municipal statutes, and the laws of the kingdoms such as the .


Pisan-Genoese and Aragonese interference and end of the four kingdoms

Pisa Pisa ( ; ) is a city and ''comune'' (municipality) in Tuscany, Central Italy, straddling the Arno just before it empties into the Ligurian Sea. It is the capital city of the Province of Pisa. Although Pisa is known worldwide for the Leaning Tow ...
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 ...
began to infiltrate the Judicial politics and economy in the eleventh century intervening to support the , against the
Taifa of Dénia The taifas (from ''ṭā'ifa'', plural ''ṭawā'if'', meaning "party, band, faction") were the independent Muslim principalities and kingdoms of the Iberian Peninsula (modern Portugal and Spain), referred to by Muslims as al-Andalus, that em ...
, an Iberian Muslim kingdom, which was trying to conquer the island. From the second half of the thirteenth century the autonomous existence of the kingdoms of Logudoro, Gallura and Calari ended due to the diplomatic maneuvers of Genoa and Pisa on the territory, on trade, on the episcopal curiae, and the ''judicial'' chancelleries. The Kingdom of Logudoro ended effectively in 1259 with the direct management of his territories by the Doria and the Malaspina Genoese families. Cagliari was conquered by a Pisan-Sardinian alliance in 1258 and his territory was divided between the winners. Gallura went to the Visconti family and then to
Pisa Pisa ( ; ) is a city and ''comune'' (municipality) in Tuscany, Central Italy, straddling the Arno just before it empties into the Ligurian Sea. It is the capital city of the Province of Pisa. Although Pisa is known worldwide for the Leaning Tow ...
in 1288. Arborea lasted longer and, between 1323 and 1326, participated in an alliance with 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 ...
at the conquest of the Pisan possessions in Sardinia (the former kingdoms of Gallura and Calari). However, threatened by the Aragonese claims of
suzerainty A suzerain (, from Old French "above" + "supreme, chief") is a person, state (polity)">state or polity who has supremacy and dominant influence over the foreign policy">polity.html" ;"title="state (polity)">state or polity">state (polity)">st ...
and consolidation of the rest of the island, in 1353 the Kingdom of Arborea, under Marianus IV of Arborea, broke the alliance with the Aragonese and together with the Doria declared war against the Iberians. In 1368 an Arborean offensive succeeded in nearly driving the Aragonese from the island, reducing the Kingdom of Sardinia to just the port cities of
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 ...
and
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 incorporating everything else into their own kingdom. A peace treaty returned the Aragonese their previous possessions in 1388, but tensions continued. In 1391 the Arborean army, led by Brancaleone Doria, again conquered most of the island, subjecting it to Arborean rule. This state of affairs lasted until 1409, when the army of the Kingdom of Arborea suffered a heavy defeat at the hands of the Aragonese army in the Battle of Sanluri. The Kingdom of Arborea ceased to exist in 1420, after the sale of its territories to the Aragonese by the last judge, William II of Narbonne, for 100,000 gold florins.


See also

* Castles of Sardinia


Notes


Bibliography


English

*Dyson, Stephen L., and Rowland, Robert J. ''Archaeology and History in Sardinia from the Stone Age to the Middle Ages: Shepherds, Sailors, and Conquerors''. Philadelphia: University of Pennsylvania Museum of Archaeology and Anthropology, 2007. *Galoppini, Laura. "Overview of Sardinia History (500–1500)", pp. 85–114. In Michelle Hobart (ed.), ''A Companion to Sardinian History, 500–1500''. Leiden: Brill, 2017. *Puglia, Andrea. "Interactions Between Lay and Ecclesiastical Offices in Sardinia", pp. 319–30. In Frances Andrews and maria Agata Pincelli (eds.), ''Churchmen and Urban Government in Late Medieval Italy, ''c''.1200–''c''.1450: Cases and Contexts''. Cambridge: Cambridge University Press, 2013. *Rowland, Robert J. ''The Periphery in the Center: Sardinia in the Ancient and Medieval Worlds''. Oxford: Archaeopress, 2001. *Tangheroni, Marco. "Sardinia and Corsica from the Mid-Twelfth to the Early Fourteenth Century", pp. 447–57. In
David Abulafia David Samuel Harvard Abulafia (born 12 December 1949) is an English historian with a particular interest in Italy, Spain and the rest of the Mediterranean during the Middle Ages and Renaissance. He spent most of his career at the University of ...
(ed.), ''The New Cambridge Medieval History, Volume 5: ''c''.1198–''c''.1300''. Cambridge: Cambridge University Press, 1999. *Tangheroni, Marco. "Sardinia and Italy", pp. 237–50. In David Abulafia (ed.), ''Italy in the Central Middle Ages, 1000–1300''. Oxford: Oxford University Press, 2004. *Zedda, Corrado. "A Revision of Sardinian History between the Eleventh and Twelfth Centuries", pp. 115–140. In Michelle Hobart (ed.), ''A Companion to Sardinian History, 500–1500''. Leiden: Brill, 2017.


Italian

* Ortu G.G., ''La Sardegna dei Giudici'', Nuoro, 2005 * Birocchi I. e Mattone A. (a cura di), ''La Carta de logu d'Arborea nella storia del diritto medievale e moderno'', Roma-Bari, 2004. * AA.VV., ''Storia dei sardi e della Sardegna'', II-III Voll., Milano, 1987-89. * A. Solmi - ''Studi storici sulle istituzioni della Sardegna nel Medioevo'' - Cagliari - 1965 * F. C. Casula - ''La storia di Sardegna'' - Sassari 1994 * P. Tola - ''Codice diplomatico della Sardegna'' - Cagliari - 1986 * E. Besta - ''La Sardegna medioevale'' - Palermo - 1954 * Raffaello Delogu, ''L'architettura del Medioevo in Sardegna'', Roma, 1953, ristampa anastatica, Sassari, 1992. * F. Loddo Canepa - ''Ricerche e osservazioni sul feudalesimo sardo'' - Roma 1932 * G. Stefani - ''Dizionario generale geografico-statistico degli stati sardi'' - Sassari - Carlo Delfino Editore * Alberto Boscolo, ''La Sardegna bizantina e alto giudicale'', Cagliari, 1978. * Alberto Boscolo, ''La Sardegna dei Giudicati'', Cagliari, Edizioni della Torre, 1979. * A. Solmi - ''Studi storici sulle istituzioni della Sardegna nel Medioevo'' - Cagliari - 1917. * R. Carta Raspi - ''La costituzione politico sociale della Sardegna'' - Cagliari - 1937. * R. Carta Raspi, ''Storia della Sardegna'', Mursia, 1971. * R. Carta Raspi, ''Mariano IV D'Arborea'', S'Alvure, 2001. * R. Carta Raspi, ''Ugone III d'Arborea e le due ambasciate di Luigi D'Anjou'', S'Alvure, 1936. * M. Caravale - ''Lo Stato giudicale, questioni ancora aperte, atti del convegno internazionale «Società e Cultura nel Giudicato d'Arborea e nella Carta de Logu»'' - Oristano - 1995. * F. C. Casula - ''Dizionario storico sardo'' - Sassari - 2003. * R. Di Tucci - ''Il diritto pubblico nella Sardegna del Medioevo, in Archivio storico sardo XV'' - Cagliari - 1924. * G. Paulis - ''Studi sul sardo medioevale'' - Nuoro - Ilisso - 1997. * Giuseppe Meloni e Andrea Dessì Fulgheri, ''Mondo rurale e Sardegna del XII secolo'', Napoli, Liguori Editore, 1994 * C. Zedda - R. Pinna ''La nascita dei giudicati. Proposta per lo scioglimento di un enigma storiografico'' in ''Archivio storico giuridico sardo di Sassari'', seconda serie, volume 12 (2007), pp. 27–118. * C. Zedda - R. Pinna - ''La Carta del giudice cagliaritano Orzocco Torchitorio, prova dell'attuazione del progetto gregoriano di riorganizzazione della giurisdizione ecclesiastica della Sardegna, Collana dell'Archivio Storico e Giuridico Sardo di Sassari'', nº 10, Sassari 2009. * C. Zedda – R. Pinna, Fra Santa Igia e il Castro Novo Montis de Castro. ''La questione giuridica urbanistica a Cagliari all'inizio del XIII secolo'', in ''Archivio Storico e Giuridico Sardo di Sassari'', vol. 15 (2010-2011), pp. 125–187. {{Sardinia Italian states 10th-century establishments in Europe 15th-century disestablishments in Italy Medieval history of Italy