This is according to the Castellarium Anglicanum which is supposed to be the ultimate authority on Castles in England and Wales. Note the intentional use of the term “site,” as many of these castles are ruined to the point of invisibility, while over 800 have some remnants, and more than 300 are still standing and structurally intact to a large degree. Also note, there is some debate as to what constitutes a “castle,” as some structures claim to be castles even as they are definitively not so.