The ring wall seems to have been built separately from the main structure.

The castle is still surrounded by a ring wall with four towers.

The work on the ring wall was likely begun in the 12th century.

You can see where there could have been some buildings outside the main ring wall.

He started around the base of the ring wall, walking with care.

It was two hours before they raised the bubble and started for the opening in the ring wall.

Only a ring wall with a diameter of 80 meters is still visible.

It was trying to reach the opening in the ring wall.

This one has two: an additional ring wall that is no longer there.

Portions remain in front of and under the outer ring wall.