Province of Medio Campidano

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.The location was the fortified village of Sanluri, in Sardinia. The Arborean army was led by Judge William III of Narbonne, and Martin commanded in person the Aragonese army. The Sardinian army was composed mostly of mercenaries, including the renowned Genoese crossbowmen and other units from France and northern Italy. There are a few details about the battle. The Aragonese were less numerous though much better trained, and managed to divide the Arborean army into two parts which were then destroyed separately. A contingent under William survived taking refuge in the castle of Monreale, in the near village of Sardara. Other Sardinian troops were captured in Sanluri, and much of the local Sardinian population was slaughtered in a plain which has taken the name of s'occidroxiu ("the slaughter") ever since.Martin died a few days later in Cagliari, allegedly by malaria transmitted by a Sanlurese mistress. The battle did not directly conclude the war, but it paved the way to the Aragonese conquest of the Arborean Judicate, which fell the following year.

The Catalan-Aragonese conquest of Sardinia took place between 1323 and 1326. The island of Sardinia was at the time subject to the influence of the Republic of Pisa, the Pisan della Gherardesca family, Genoa and of the Genoese families of Doria and the Malaspina; the only native political entity survived was the Judicate of Arborea, allied with the Crown of Aragon. The financial difficulties due to the wars in Sicily (until 1295), the conflict with the Crown of Castile in the land of Murcia and Alicante (1296-1304) and the failed attempt to conquer Almeria (1309) explain the delay of James II of Aragon in bringing the conquest of Sardinia, enfeoffed to him by Pope Boniface VIII in 1297. The possession of the island of Sardinia was crucial for the Crown of Aragon. Sardinia was abundant of natural resources like silver and salt and had a thriving agro-pastoral economy; also its geographical location ensured more control over the western Mediterranean and the island itself was an indispensable basis for the creation of so-called ruta de las islas (route of the islands) that allowed to halve the time of sailing to reach the rich markets of the Eastern Mediterranean.

Sanluri (Italian: [sanˈluːri] ; Sardinian: Seddori, Latin: Sullurium) is a comune in Sardinia, Italy. It became part of the Province of South Sardinia, following the creation of that local unit in 2016. The territory of Sanluri comprises an area of 84.16 square kilometres (32.49 sq mi). In 1436, Sanluri was elevated to viscountship by the Aragonese Crown, and granted to Giovanni de Sena, baron of Quartu Sant'Elena and viscount of Sanluri, the feudalism lasted until the 1800s.

Sardara, Sàrdara in the Sardinian language, is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 50 kilometres (31 mi) northwest of Cagliari and about 8 kilometres (5 mi) northwest of Sanluri. Located in the Campidano plain, it is part of the Marmilla historical region.

San Gavino Monreale (Sardinian: Santu ‘Engiu) is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 45 kilometres (28 mi) northwest of Cagliari, and roughly halfway between the latter and the town of Oristano. San Gavino Monreale borders the following municipalities: Gonnosfanadiga, Pabillonis, Sanluri, Sardara, Villacidro. It is home to a castle.

Nuraghe Su Mulinu is an archaeological site located in the territory of Villanovafranca, in the province of South Sardinia.

Villanovafranca (Biddanoa Franca, Bidda Noa Franca in Sardinian) is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 50 kilometres (31 mi) north of Cagliari and about 13 kilometres (8 mi) northeast of Sanluri. Villanovafranca borders the following municipalities: Barumini, Escolca, Gesico, Guasila, Las Plassas, Villamar. Big attractions are the nuraghe Su Mulinu with its homonym museum and the church of San Lorenzo.

Turri is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 60 kilometres (37 mi) northwest of Cagliari and about 15 kilometres (9 mi) north of Sanluri. As of 31 December 2004, it had a population of 500 and an area of 9.6 square kilometres (3.7 sq mi).Turri borders the following municipalities: Baradili, Baressa, Genuri, Pauli Arbarei, Setzu, Tuili, Ussaramanna.

Las Plassas, Is Pratzas or Is Platzas in the Sardinian language, is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 50 kilometres (31 miles) north of Cagliari and about 15 kilometres (9 miles) northeast of Sanluri. Las Plassas borders the following municipalities: Barumini, Pauli Arbarei, Tuili, Villamar, Villanovafranca.

Guasila is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 40 kilometres (25 mi) north of Cagliari. As of 31 December 2004, it had a population of 2,871 and an area of 43.5 square kilometres (16.8 sq mi).Guasila borders the following municipalities: Furtei, Gesico, Guamaggiore, Ortacesus, Pimentel, Samatzai, Segariu, Serrenti, Villamar, Villanovafranca.

Setzu is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 60 kilometres (37 mi) northwest of Cagliari and about 15 kilometres (9 mi) north of Sanluri. Setzu borders the following municipalities: Genoni, Genuri, Gesturi, Tuili, Turri.

Samatzai is a town in the province of South Sardinia, located on the fringe of the Campidano in Sardinia (Italy). It is 33 km away from Cagliari. The name derives from Ancient Greek 'samax', which means "rush mat", or from the Mesopotamian god Samas. Either way, Samatzai is believed to have been inhabited since Nuragic times. The main attraction of note is the 15th-century Church of San Giovanni Battista in the town centre, built in an Aragonese-influenced Gothic style. Other churches include the 17th-century Santa Barbara and the ruined San Marco. The Monte Granitico, a former grain silo that is now a library, is known for its unusual floor plan. Samatzai's economy is mainly focused on the primary sector, despite it being home to one of Italy's most prominent cement works. Residents of the town are known as samatzesi, and the town's patron saint is John the Baptist.