On the hill of Radicofani, there is the large Fortress of Radicofani, with its walls that dominate the vast territory between Monte Cetona, Val d'Orcia and Monte Amiata. Built in the 9th century by the Carolingians, over time it was a point of contention by many powers that aspired to its strategic-military position. In 1153, the Fortress became the property of the Papal States. When the Medici family came to power, Cosimo I entrusted the architect Baldassarre Lanci with the plan to renovate the fortress. The place is well known not only for its beauty and its walls, but also for having accommodated a character named Ghino di Tacco. His story is told by Boccaccio in a Short Story in the Decameron and by Dante in the Divine Comedy.
It is the story of an ancient Robin Hood, who came from a family that had noble origins but that was excluded from the honours reserved for aristocratic families. As revenge, the family rebelled and was executed in Siena's Piazza del Campo. Ghino fled and settled in the Castle of Radicofani, a strategic place of passage from Florence to Rome, and became a robber who sacked and plundered. But Ghino was a nobleman. He spared his victims their lives and even left them money to survive. The Rocca now contains the Cassero Museum, in which there are artefacts from the Etruscan age to the Medici age. Both the basements and the walkways on the walls can be visited, and climbing up to the tall Torre del Cassero tower, you can see a unique panorama of the Val d'Orcia.