Examples
A gazetteer compiled by archaeologist Robert Higham counted 21 shell keeps in England and Wales. Examples include the Round Tower at Windsor Castle and the majority were built in the 11th and 12th centuries.
Surviving English examples of shell keeps include:
- Arundel, West Sussex (re-modelled post-medieval)
- Berkhampstead, Hertfordshire
- Carisbrooke, Isle of Wight
- Castle Acre, Norfolk (shell keep around an inner tower or manor House)
- Clare, Suffolk (part of wall on motte only)
- Fotheringhay, Northamptonshire (demolished - motte only survives)
- Launceston, Cornwall
- Lewes, East Sussex – two shell keeps on same site? One survives.
- Lincoln, Lincolnshire – two shell keeps on same site? One survives.
- Oxford, Oxfordshire
- Pickering, North Yorkshire
- Restormel, Cornwall (excellent example)
- Tamworth, Staffordshire
- Tonbridge, Kent (foundations on motte only)
- Totnes, Devon
- Trematon, Cornwall
- Warwick, shell demolished and incorporated into bailey wall post-medieval
- Wigmore, Herefordshire
- Windsor, Berkshire (re-modelled post-medieval)
- Wiston (Wales)
In addition Farnham and Berkeley castles have stone enclosed mottes which may be interpreted as shell keep variations. At other sites such as Durham, Warkworth, Clifford's Tower (York) and Sandal (Wakefield), shell keeps may have evolved into a tower proper. Clifford's Tower is often interpreted by modern visitors as a shell keep due to explosion damage, in 1684, which removed the roof and its central supporting masonry. True shell keeps were a stone wall around the upper perimeter of the motte with lean-to buildings against this outer wall and a small courtyard in the middle. See Restormel plan below.
Unusually Lewes and Lincoln castles both feature two separate mottes which may have had shell keeps upon both of them. The reason for this is unclear but given that Lincoln Castle is adjacent to the cathedral, one shell keep may have been for the castellan (castle holder) and the other for the bishop. In each case, only one shell keep survives.
A castle is a type of fortified structure built during the Middle Ages predominantly by the nobility or royalty and by military orders. Scholars usually consider a castle to be the private fortified residence of a lord or noble. This is distinct from a mansion, palace, and villa, whose main purpose was exclusively for pleasance and are not primarily fortresses but may be fortified. Use of the term has varied over time and, sometimes, has also been applied to structures such as hill forts and 19th- and 20th-century homes built to resemble castles. Over the Middle Ages, when genuine castles were built, they took on a great many forms with many different features, although some, such as curtain walls, arrowslits, and portcullises, were commonplace.
Cardiff Castle is a medieval castle and Victorian Gothic revival mansion located in the city centre of Cardiff, Wales. The original motte and bailey castle was built in the late 11th century by Norman invaders on top of a 3rd-century Roman fort. The castle was commissioned either by William the Conqueror or by Robert Fitzhamon, and formed the heart of the medieval town of Cardiff and the Marcher Lord territory of Glamorgan. In the 12th century the castle began to be rebuilt in stone, probably by Robert of Gloucester, with a shell keep and substantial defensive walls being erected. Further work was conducted by the 6th Earl of Gloucester in the second half of the 13th century. Cardiff Castle was repeatedly involved in the conflicts between the Anglo-Normans and the Welsh, being attacked several times in the 12th century, and stormed in 1404 during the revolt of Owain Glyndŵr.
Alnwick Castle is a castle and country house in Alnwick in the English county of Northumberland. It is the seat of the 12th Duke of Northumberland, built following the Norman conquest and renovated and remodelled a number of times. It is a Grade I listed building now the home of Ralph Percy, 12th Duke of Northumberland and his family. In 2016, the castle received over 600,000 visitors per year when combined with adjacent attraction the Alnwick Garden.
Castles have played an important military, economic and social role in Great Britain and Ireland since their introduction following the Norman invasion of England in 1066. Although a small number of castles had been built in England in the 1050s, the Normans began to build motte and bailey and ringwork castles in large numbers to control their newly occupied territories in England and the Welsh Marches. During the 12th century the Normans began to build more castles in stone – with characteristic square keep – that played both military and political roles. Royal castles were used to control key towns and the economically important forests, while baronial castles were used by the Norman lords to control their widespread estates. David I invited Anglo-Norman lords into Scotland in the early 12th century to help him colonise and control areas of his kingdom such as Galloway; the new lords brought castle technologies with them and wooden castles began to be established over the south of the kingdom. Following the Norman invasion of Ireland in the 1170s, under Henry II, castles were established there too.
Tamworth Castle, a Grade I listed building, is a Norman castle overlooking the mouth of the River Anker into the Tame in the town of Tamworth in Staffordshire, England. Before boundary changes in 1889, however, the castle was within the edge of Warwickshire while most of the town belonged to Staffordshire.
Totnes Castle is one of the best preserved examples of a Norman motte and bailey castle in England. It is situated in the town of Totnes on the River Dart in Devon. The surviving stone keep and curtain wall date from around the 14th century. From after the Norman Conquest of 1066 it was the caput of the Feudal barony of Totnes.
A motte-and-bailey castle is a European fortification with a wooden or stone keep situated on a raised area of ground called a motte, accompanied by a walled courtyard, or bailey, surrounded by a protective ditch and palisade. Relatively easy to build with unskilled labour, but still militarily formidable, these castles were built across northern Europe from the 10th century onwards, spreading from Normandy and Anjou in France, into the Holy Roman Empire, as well as the Low Countries it controlled, in the 11th century, when these castles were popularized in the area that became the Netherlands. The Normans introduced the design into England and Wales. Motte-and-bailey castles were adopted in Scotland, Ireland, and Denmark in the 12th and 13th centuries. By the end of the 13th century, the design was largely superseded by alternative forms of fortification, but the earthworks remain a prominent feature in many countries.
A keep is a type of fortified tower built within castles during the Middle Ages by European nobility. Scholars have debated the scope of the word keep, but usually consider it to refer to large towers in castles that were fortified residences, used as a refuge of last resort should the rest of the castle fall to an adversary. The first keeps were made of timber and formed a key part of the motte-and-bailey castles that emerged in Normandy and Anjou during the 10th century; the design spread to England, Portugal, south Italy and Sicily. As a result of the Norman Conquest of England in 1066, use spread into Wales during the second half of the 11th century and into Ireland in the 1170s. The Anglo-Normans and French rulers began to build stone keeps during the 10th and 11th centuries, including Norman keeps, with a square or rectangular design, and circular shell keeps. Stone keeps carried considerable political as well as military importance and could take a decade or more to build.
Lewes Castle is a medieval castle in the town of Lewes in East Sussex, England. Originally called Bray Castle, it occupies a commanding position guarding the gap in the South Downs cut by the River Ouse and occupied by the towns of Lewes and Cliffe. It stands on a man-made mount just to the north of the high street in Lewes, and is constructed from local limestone and flint blocks.
Restormel Castle lies by the River Fowey near Lostwithiel in Cornwall, England, UK. It is one of the four chief Norman castles of Cornwall, the others being Launceston, Tintagel and Trematon. The castle is notable for its perfectly circular design. Once a luxurious residence of the Earl of Cornwall, the castle was all but ruined by the 16th century. It was briefly reoccupied and fought over during the English Civil War, but was subsequently abandoned. It is now in the care of English Heritage and open to the public.
Wiston Castle is a motte and bailey castle in the Pembrokeshire village of Wiston in south west Wales and is one of the best examples of its type in Wales. The castle and village were founded by Wizo, a Flemish settler who was granted the land by Henry I of England after he had wrested control from the previous owner, Arnulf de Montgomery. The castle was captured by the Welsh on several occasions but on each occasion it was retaken. It was abandoned during the thirteenth century when the then owner moved to nearby Picton Castle.
Okehampton Castle is a medieval motte and bailey castle in Devon, England. It was built between 1068 and 1086 by Baldwin FitzGilbert following a revolt in Devon against Norman rule, and formed the centre of the Honour of Okehampton, guarding a crossing point across the West Okement River. It continued in use as a fortification until the late 13th century, when its owners, the de Courtenays, became the Earls of Devon. With their new wealth, they redeveloped the castle as a luxurious hunting lodge, building a new deer park that stretched out south from the castle, and constructing fashionable lodgings that exploited the views across the landscape. The de Courtenays prospered and the castle was further expanded to accommodate their growing household.
Brough Castle is a ruined castle in the village of Brough, Cumbria, England. The castle was built by William Rufus around 1092 within the old Roman fort of Verterae to protect a key route through the Pennine Mountains. The initial motte and bailey castle was attacked and destroyed by the Scots in 1174 during the Great Revolt against Henry II. Rebuilt after the war, a square keep was constructed and the rest of the castle converted to stone.
Lydford Castle is a medieval castle in the town of Lydford, Devon, England. The first castle in Lydford, sometimes termed the Norman fort, was a small ringwork built in a corner of the Anglo-Saxon fortified burh in the years after the Norman conquest of England. It was intended to help control Devon following the widespread revolt against Norman rule in 1068. The Norman fort had been abandoned by the middle of the 12th century.
Launceston Castle is located in the town of Launceston, Cornwall, England. It was probably built by Robert the Count of Mortain after 1068, and initially comprised an earthwork and timber castle with a large motte in one corner. Launceston Castle formed the administrative centre of the new earldom of Cornwall, with a large community packed within the walls of its bailey. It was rebuilt in stone in the 12th century and then substantially redeveloped by Richard of Cornwall after 1227, including a high tower to enable visitors to view his surrounding lands. When Richard's son, Edmund, inherited the castle, he moved the earldom's administration to Lostwithiel, triggering the castle's decline. By 1337, the castle was increasingly ruinous and used primarily as a gaol and to host judicial assizes.
Trematon Castle is situated near Saltash in Cornwall, England, United Kingdom. It was the caput of the feudal barony of Trematon. It is similar in style to the later Restormel Castle, with a 12th-century keep. Trematon Castle overlooks Plymouth Sound and was built probably by Robert, Count of Mortain on the ruins of an earlier Roman fort: it is a motte-and-bailey castle and dates from soon after the Norman conquest. It occupies a sentinel position one and a half miles south-east of Trematon village.
Stockport Castle was a promontory castle in Stockport, Greater Manchester, England. The castle was in the medieval town, overlooking a ford over the River Mersey. It was first documented in 1173, but the next mention of it is in 1535 when it was in ruins. What remained of the castle was demolished in 1775.
While there are many castles in South Yorkshire, the majority are manor houses and motte-and-bailey which were commonly found in England after the Norman Conquest.
Berkhamsted Castle is a Norman motte-and-bailey castle in Berkhamsted, Hertfordshire. The castle was built to obtain control of a key route between London and the Midlands during the Norman conquest of England in the 11th century. Robert of Mortain, William the Conqueror's half brother, was probably responsible for managing its construction, after which he became the castle's owner. The castle was surrounded by protective earthworks and a deer park for hunting. The castle became a new administrative centre of the former Anglo-Saxon settlement of Berkhamsted. Subsequent kings granted the castle to their chancellors. The castle was substantially expanded in the mid-12th century, probably by Thomas Becket.
