Sardinia Sardinia Sardinia ( ; ; or ; ; ; ; ) is the second-largest island in the Mediterranean Sea (after Sicily and before Cyprus). It is located west of the Italian Peninsula and to the immediate south of the French island of Corsica. Sardinia is politically a region of Italy, whose official name is "Regione Autonoma della Sardegna" / "Regione Autònoma de Sardigna" (Autonomous Region of Sardinia), and enjoys some degree of domestic autonomy granted by a specific Statute. It is divided into four provinces and a metropolitan city, with Cagliari being the region's capital and its largest city as
Kingdom of Sardinia Sardinia, including the city of Alghero and the semiautonomous Republic of Sassari, and added them to its direct domains. The Giudicato of Arborea, the only Sardinian state that remained independent of foreign domination, proved far more difficult to subdue. Threatened by the Aragonese claims of suzerainty and consolidation of the rest of the island, in 1353 Arborea, under the leadership of Marianus IV, started the conquest of the remaining Sardinian territories, which formed the Kingdom of Sardinia. In 1368 an Arborean offensive succeeded in nearly driving the Aragonese from the island, reducing the "Kingdom of Sardinia and Corsica" to just