The original fortification seems to go back to the first years of the 1200, when the family Cacciaconti of Trequanda surrounded the hill with stone walls. Subsequently the possession passed to the family of the Gallerani and in 1339 to the Piccolomini, that conquered the castle after a long and bloody siege. In this period the fortification has been strengthened, mainly with the reconstruction of the mighty bastionated keep. Today the ruins of the castle rises in the garden of a private villa, built enclosing the north-east angle of the external castle walls. The fortification, crowning the vertex of a hill of 350 meters high, had the form of the classic medieval castle-fenced.
Today still remain some lines of the walled enclosure, a gate and the partially destroyed keep.
Its form is similar to those of the not far Rocca of Tentennano and the worked stones used in its construction still testimony the ancient importance of this settlement.