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
Iglesias, Sardinia Iglesias, Sardinia Iglesias ( ; ) is a "comune" and city in the province of South Sardinia in Italy. It was co-capital of the province of Carbonia-Iglesias with Carbonia, and the province's second-largest community. Under Spanish control Iglesias was one of the most important royal cities on Sardinia, and it is the seat of the Roman Catholic Diocese of Iglesias. At an elevation of in the hills of southwestern Sardinia, it was the centre of a mining district from which lead, zinc, and silver were extracted. Iglesias was also a centre for the distillation of sulfuric acid. The area around