Visconti of Pisa and Sardinia Ubaldo. In 1207, Lamberto married Elena, the heiress of Barisone II of Gallura, thus securing control over the northeastern corner of Sardinia with his capital at Civita. In 1215, he and Ubaldo established their hegemony over the Giudicato of Cagliari in the south of the island as well. Through advantageous marriages, Lamberto's son, Ubaldo II, secured power in Logudoro for a time. By mid century, Pisan authority was unopposed in Sardinia, thanks to intermarriages between the Visconti family and the other great families of Pisa (Gherardeschi and Capraia) and Sardinia (Lacon and Bas-Serra). Visconti of Pisa and Sardinia The Visconti
History of mining in Sardinia Sardinia to populate the new mining towns founded in the Sulcis-Iglesiente region such as Carbonia and Cortoghiana. The Geomineral Park of Sardinia, founded in 1989, and supported by UNESCO, today preserves the ancient mines and the ex mining villages that are become examples of industrial archeology. History of mining in Sardinia Mining and the processing of minerals date back to ancient times in Sardinia. Ancient traders and conquerors, attracted by the astonishing underground riches, were drawn to the island's coast. Evidence of ancient metal processing is given in the many placenames connected with mining: examples include Argentiera, Montiferru, Funtana Raminosa,