Brindisi di Montagna Castle was built around 1200 and is situated on a large rocky ridge. The architecture is characterized by three main elements: The central part (a long the rocky ridge of the hill).The northern part, with the turret for lookout (later transformed by the Antinori family into the chapel of San Michele) and the southern part where there are few but significant wall traces embedded in the rocky elements.
Its defensive function is evident both from the presence of arrow slits and its position overlooking the intersection of the two routes leading to the fortress. It differs from the Swabian castles in terms of its layout, formal characteristics, and construction techniques, as it predates others built by Frederick II. Instead, it has undergone numerous transformations since the Angevin rule.