The castle stands isolated at theend of the road that crosses the entire length of village of Derby.
It is currently used as a farm, although we know that the underground served as a prison in ancient times.
It is still possible to see beautiful windows in worked stone, as well as the remains of the perimeter wall and a corner tower provided with loopholes on the east side.
The castle was apparently used a judicial seat, although it is not known whether this was of Sant’Orso or the Cathedral.