Sleeping chambers.
Underground chamber. Too nicely done to be a prison cell, I would say. Perhaps a church
Inside the fortress you get the feeling of a compressed village. It isn't really wrong, a fortress had to be arranged to let its soldiers survive weeks of siege if the worst scenario would arrive. Here are sleeping chambers, storage rooms, a deep water cistern, a church.
This has all traces of having been a church, it looks like a tiny basilica with an apse in one end.
All towers can be entered, but they are all without floors and staircases. Perhaps things were made from wood, or that the floor fell in and took the staircase with it. No stones are left on the ground, but these may have been used by local house builders through the centuries.
