cross-wall

{{Short description|Interior dividing wall}}

{{for-multi|the street in London|Crosswall|the construction technique|Crosswall construction}}

File:Prif borth Castell Caerfyrddin 03.JPG]]

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.Friar, Stephen (2003). The Sutton Companion to Castles, Sutton Publishing, Stroud, 2003, p. 85. {{ISBN|978-0-7509-3994-2}}

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.