Ringwork
A ringwork is a form of fortified defensive structure, usually circular or oval in shape. Ringworks are essentially motte-and-bailey castles minus the motte. Defences were usually earthworks in the form of a ditch and bank surrounding the site.
Ringworks originated in Germany in the 10th century as an early form of medieval castle and at first were little more than a fortified manor house. They appeared in England just prior to the Norman conquest and large numbers were built during the late 11th and early 12th centuries. More elaborate versions comprise a ringwork and bailey, the ringwork replacing the more usual motte and the bailey acting as a military stronghold.
, Bridgnorth
A survey published in 1969 identified 198 ringwork castles in England and Wales, with a further 50 sites that were considered to possibly be ringworks. D. J. Cathcart King and Leslie Alcock proposed the following classification of ringworks based on their surviving remains:
- A - a bank and ditch encircling the site
- B - a bank and ditch encircling the site, with an artificially raising interior
- Bb - a bank and ditch encircling the site on a natural hillock, where the ground surface slopes so that the interior is higher than the exterior
- C - a bank on one side with sloping ground on the other
- D - a bank on one side with sloping ground on the other combined with a ditch and an artificially raised interior
- Dd - a bank on one side with sloping ground on the other combined with a ditch and the interior raised by a natural hillock