From 1994 the Department of Medieval Archeology of the University of Siena started an archaeological dig whose results are currently shown in the museum (Museo della Rocca) opened in 2008. It was detected the presence of a farmer's wooden-hut village since the 10th century, while the traces of the first stone buildings dates back to the 12th century as residential area for the powerful Della Gherardesca family, ruler of Campiglia at the time. At the end of the 13th century, since the local political scenario had been changed, a Pisan garrison settled in the castle, as witnessed by pieces of weapons and armours dug up in the area.