Almost every popular history book of Kent identifies Castle Rough as the location of a raid by the Saxon pirates Hengist and Horsa.

It sounds romantic, and as the site lies almost inaccessibly in the midst of dull marshland next to a huge paper mill, few people have been there and disagreed.

Castle Rough is located on marshes south-east of Kemsley, Kent.

I directed a small excavation on the site in 1972. Dating evidence discovered during the excavation indicates that the site is Medieval or later.