Sassetta was an important castle of the Pisan Republic, demolished in 1503 after the conquest. In 1516 were also exiled the original Lords of the place, the Pisans Orlandi of Sassetta. From the 16th century the village belonged to the family of Spanish origin Ramirez de Montalvo, now in Florence with the Court of Eleonora of Toledo who married the Grand Duke of Tuscany Cosimo I de ‘ Medici.
Ruins of the castle in the Centre of the village
In the municipality of Sassetta, within the system of the Val di Cornia parks, created the naturalistic Park Poggio blacks and forest–forest Museum.