Sorano was probably inhabited by the
Villanovan culture, but the first historical records date to the 3rd century BC, when it was an Etruscan city under the influence of the nearby and more populous
Sovana. Little is known about its history during the Roman period, but Sorano reappears in historical records in 862, when a county was founded by
Emperor Louis II under the suzerainty of the
Aldobrandeschi family. The Aldobrandeschi were among the most powerful feudal lords in southern Tuscany for more than four centuries, until 1312, when Margherita, daughter of Ildibrandino, died without male heirs. Her daughter Adelaide married Romano di Gentile of the
Orsini family, who incorporated Sorano into the Orsini domains. The County of Pitigliano and Sorano fought against the
Republic of Siena, but was forced to accept its suzerainty from 1417. It regained full independence in 1556, after Siena was annexed to the
Duchy of Tuscany. Due to its strategic position, the fortress was frequently attacked, and it also became the scene of fratricidal conflicts within the Orsini family. In 1604, following the death of Alessandro di Bertoldo, Sorano became part of the Grand Duchy of Tuscany. It was incorporated into the
Kingdom of Italy in 1860. ==
Frazioni==