Cross-wall

For the street in London, see Crosswall. For the construction technique, see Crosswall construction.

File:Prif borth Castell Caerfyrddin 03.JPG

Carmarthen Castle

A cross-wall is an interior dividing wall of a castle. It may be an external wall dividing, for example, the inner and outer wards, or it may be a wall internal to a building such as the keep.

An example of the external variety is the great cross-wall separating the inner and outer baileys of Conwy Castle in Wales. At Rochester Castle in Kent, the cross-wall within the keep was used for protection when the castle was attacked in 1215.