Roberto Belforti
Roberto Belforti was a son of Ottaviano Belforti, the first signore of Volterra. A former podestà of Perugia (1345), he was knighted in February 1346 and married Gemma, daughter of Gaddo Cavalcanti.
On 4 August 1348, amid the plague, Roberto, Bernardo and Franco Belforti were entrusted with urgent measures after many officials died. Roberto and his brothers Bocchino and Filippo came to exercise power, and after a long pilgrimage to the Holy Land he led Volterra's homage to Emperor Charles IV at Pisa in 1355.