Ubaldo I Visconti (died 1230) was the '' de jure'' overlord of the Giudicato of Cagliari from 1217. He was a member of the

Visconti Visconti is a surname which may refer to: Italian noble families * Visconti of Milan, ruled Milan from 1277 to 1447 ** Visconti di Modrone, collateral branch of the Visconti of Milan * Visconti of Pisa and Sardinia, ruled Gallura in Sardinia from ...

family of

Pisa Pisa ( , or ) is a city and ''comune'' 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 its leaning tower, the cit ...

, controlling Cagliari on behalf of his brother, who was judge ''

jure uxoris ''Jure uxoris'' (a Latin phrase meaning "by right of (his) wife"), citing . describes a title of nobility used by a man because his wife holds the office or title ''suo jure'' ("in her own right"). Similarly, the husband of an heiress could becom ...

'' from 1218. His grandfather, Alberto, was a patrician of Pisa, while his father, Eldizio, was patrician and consul. He and his brother Lamberto in turn served as patrician and '' podestà''. Ubaldo's grandmother was Aligarda and his mother was a daughter of

Torchitorio III of Cagliari Torchitorio IIIAlso spelled ''Torgodorio'', ''Dorgodorio'', ''Torcotore'', or ''Torxitori''. The rulers of Cagliari had the habit of alternating their regnal names between Salusio and Torchitorio. (died after 1188), born Peter, was the Judge of Ca ...

, through whom he would have inherited some claim on the ''giudicato''. Around 1200, Ubaldo was assisting William I of Cagliari on behalf of Pisa in a war with

Comita III of Logudoro Comita III (c. 1160 – 1218) was the '' giudice'' of Logudoro, with its capital at Torres, from 1198 until 1218. He was the youngest of four sons of Barisone II of Torres and Preziosa de Orrubu. He ruled at a time when the great families, usually ...

when the two warring ''giudici'' came to terms. In 1212, there was complete anarchy in Pisa. A pro-Visconti faction was at war with an anti-Visconti one. In mid-January 1213, William of Cagliari led the forces of

Massa Massa may refer to: Places *Massa, Tuscany, the administrative seat of the Italian province of Massa-Carrara. *Massa (river), river in Switzerland * Massa (Tanzanian ward), administrative ward in the Mpwapwa district of the Dodoma Region of Ta ...

Pistoia Pistoia (, is a city and ''comune'' in the Italian region of Tuscany, the capital of a province of the same name, located about west and north of Florence and is crossed by the Ombrone Pistoiese, a tributary of the River Arno. It is a typi ...

, the anti-Visconti faction in Pisa, and the militia of

Guido Guerra III Guido is a given name Latinisation of names, Latinised from the Old High German name Wido. It originated in Medieval Italy. Guido later became a male first name in Austria, Germany, the Low Countries, Scandinavia, Spain, Portugal, Latin America an ...

to victory near Massa over the forces of Lucca supported by the Visconti under Ubaldo, and by the deposed Pisan ''podestà''

Goffredo Musto Goffredo is an Italian given name, cognate with Godfrey, Gottfried, Galfrid, etc. Notable people with the name include: *Goffredo Alessandrini (1904–1978), Italian script writer and film director * Goffredo Baur, Italian cross country skier who ...

. Pisa was forced to accept four rectores, only one of which was a Visconti. In 1214, Lamberto and Ubaldo took the opportunity that year to launch an offensive at

Cagliari Cagliari (, also , , ; sc, Casteddu ; lat, Caralis) is an Italian municipality and the capital of the island of Sardinia, an autonomous region of Italy. Cagliari's Sardinian name ''Casteddu'' means ''castle''. It has about 155,000 inhabitant ...

and

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 ...

, but were beaten off by Comita and Genoa. The war continued at sea, but was arrested by the entreaties of Pope Honorius III, who forced Comita to come to terms with Pisa (1 December 1217). In 1215, profiting from the weakness of the ''giudicessa'' Benedetta of Cagliari, Lamberto assembled a large fleet and landed an army at

. He captured the adjacent hill,

S. Gilla S is the nineteenth letter of the English alphabet. S may also refer to: History * an Anglo-Saxon charter's number in Peter Sawyer's, catalogue Language and linguistics * Long s (ſ), a form of the lower-case letter s formerly used where "s ...

, which dominated the city, and fortified it. To Ubaldo he gave the job of finishing the conquest and securing Pisan control of Cagliari. He forced Benedetta to flee her capital. In 1217, Ubaldo forced her to accept terms surrendering Cagliari. She received her ''giudicato'' back as fief from the consul of Pisa. However, violence between Sardinians and Pisans escalated in Cagliari and Benedetta and her husband, Torchitorio IV, made an alliance with Comita and Genoa in hopes of expelling the Pisans. Meanwhile, Lambert's wife, Elena of Gallura, died sometime before 1220 and, in 1218, a year after the death of Benedetta's husband, Ubaldo arranged the marriage of Benedetta with Lamberto. The two were married, despite papal objections, on 9 April 1220. In 1230, Ubaldo, who had controlled Cagliari since 1215, died. His nephew, Lamberto's son, Ubaldo II, inherited his position. His son John would be Ubaldo II's successor in the

Giudicato of Gallura The Judicate of Gallura ( lat, Iudicatus Gallurae, sc, Judicadu de Gallura, it, Giudicato di Gallura) was one of four Sardinian judicates in the Middle Ages. These were independent states whose rulers bore the title ''iudex'', judge. Gallura, a ...

Sources

*Ferrabino, Aldo (ed). ''Dizionario Biografico degli Italiani: I Aaron – Albertucci''. Rome, 1960. {{DEFAULTSORT:Ubaldo 01 Visconti 1230 deaths Visconti of Pisa and Sardinia Year of birth unknown