History of Sardinia strongholds on strategic points in the south and west of Sardinia, often peninsulas or islands near estuaries, easy to defend and natural harbours, such as Tharros, Bithia, Sulci, Nora and Caralis (Cagliari). The majority of the inhabitants in these cities were of indigenous nuragic stock while the Phoenician element was, although culturally predominant, in minority. The Phoenicians came originally from what is now Lebanon and founded a vast trading network in the Mediterranean. Sardinia had a special position because it was central in the Western Mediterranean between Carthage, Spain, the river Rhône and the Etruscan civilization area. The mining area
Kingdom of Sardinia James and his successors conquered the island of Sardinia and established "de facto" their "de jure" authority. In 1420, after the Sardinian-Catalan War, the last competing claim to the island was bought out. After the union of the crowns of Aragon and Castile, Sardinia became a part of the burgeoning Spanish Empire. In 1720 it was ceded by the Habsburg and Bourbon claimants to the Spanish throne to Duke Victor Amadeus II of Savoy. The Kingdom of Sardinia came to be progressively identified with the states ruled by the main branch of the House of Savoy, which included, besides Savoy