Oristano in the context of List of municipalities of Sardinia

Campidano (Sardinian: Campidànu) is a plain located in South-Western Sardinia (Italy), covering approximately 100 kilometres between Cagliari and Oristano.

The Judicate of Arborea (Sardinian: Judicadu de Arbaree; Italian: Giudicato di Arborea; Latin: Iudicatus Arborensis) or the Kingdom of Arborea (Sardinian: Rennu de Arbaree; Italian: Regno di Arborea; Latin: Regnum Arborensis) was one of the four independent judicates into which the island of Sardinia was divided in the Middle Ages. It occupied the central-west portion of the island, wedged between Logudoro to the north and east, Cagliari to the south and east, and the Mediterranean Sea to the west. To the northeast of Logudoro was Gallura, 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, though Oristano served as capital for most of its existence.

Laconi, Làconi in Sardinian language, is a comune (municipality) in the Province of Oristano in the Italian region Sardinia, located about 70 kilometres (43 miles) north of Cagliari and about 40 kilometres (25 miles) east of Oristano.

Laconi borders the following municipalities: Aritzo, Asuni, Gadoni, Genoni, Isili, Meana Sardo, Nuragus, Nurallao, Nureci, Samugheo, Senis, Villanova Tulo.

Campidanese Sardinian (Sardinian: sardu campidanesu, Italian: sardo campidanese) also known as Southern Sardinian (Italian: sardo meridionale) is one of the two written standards of the Sardinian language, which is often considered one of the most, if not the most conservative of all the Romance languages. The orthography is based on the spoken dialects of central southern Sardinia, identified by certain attributes which are not found, or found to a lesser degree, among the Sardinian dialects centered on the other written form, Logudorese. Its ISO 639-3 code is sro.

Traditionally the name Campidanu (Campidano in Italian) refers to the fertile area located around the towns of Guspini and Villacidro. Campidanese dialects can be found across the entire Province of Cagliari and not just the Province of Medio Campidano area. Campidanese also extends into parts of the Province of Nuoro, notably the Ogliastra area and in the southern half of the Province of Oristano, the capital included. However, it is at this point that the dialects merge into Logudorese.