 On the second and third levels of the promontory a network of galleries and underground staircases was dug, allowing access to the castle and to reach the keep and its moat (14th - 15th centuries).In the west are remains of advanced defences and, probably, the motte protecting the home from the first lords up to the 11th century.However, excavations have shown that this part of the site was occupied since protohistory, if not the Neolithic era.