Career
Torbeno subscribed to a diploma in 1089 as the brother of the judge, then Constantine. At that time, the principle of hereditary succession was not established in Sardinia. Rather, the monarchy was elective.
His reign saw great liberality with the treasury in granting lands and other gifts to Pisans, probably as the price of their alliance.
He also funded the construction of a new duomo (cathedral) at Pisa. Probably the Genoese, inveterate enemies of Pisa, were only too happy to overthrow Torbeno.
Torbeno"s last donation was dated to 1103. He was a leader, alongside Saltaro of Torres, of the Sardinian contingent of the Pisan expedition against the Almoravids of the Balearic Islands in 1113.
