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.
York Castle is a fortified complex in the city of York, England. It consists of a sequence of castles, prisons, law courts and other buildings, which were built over the last nine centuries on the south side of the River Foss. The now ruined keep of the medieval Norman castle is commonly referred to as Clifford's Tower. Built originally on the orders of William I to dominate the former Viking city of Jórvík, the castle suffered a tumultuous early history before developing into a major fortification with extensive water defences. After a major explosion in 1684 rendered the remaining military defences uninhabitable, York Castle continued to be used as a gaol and prison until 1929.
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 invasion of 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.
Lincoln Castle is a major medieval castle constructed in Lincoln, England, during the late 11th century by William the Conqueror on the site of a pre-existing Roman fortress. The castle is unusual in that it has two mottes. It is one of only two such castles in the country, the other being at Lewes in East Sussex. Lincoln Castle remained in use as a prison and court into modern times and is one of the better preserved castles in England; the Crown Courts continue to this day. It is open to the public most days of the week and possible to walk around the walls from which there are views of the castle complex, cathedral, the city, and surrounding countryside. Displayed within the castle is one of only four surviving exemplars of the Magna Carta of 1215. The castle is now owned by Lincolnshire County Council and is a scheduled monument.
Wallingford Castle was a major medieval castle situated in Wallingford in the English county of Oxfordshire, adjacent to the River Thames. Established in the 11th century as a motte-and-bailey design within an Anglo-Saxon burgh, it grew to become what historian Nicholas Brooks has described as "one of the most powerful royal castles of the 12th and 13th centuries". Held for the Empress Matilda during the civil war years of the Anarchy, it survived multiple sieges and was never taken. Over the next two centuries it became a luxurious castle, used by royalty and their immediate family. After being abandoned as a royal residence by Henry VIII, the castle fell into decline. Refortified during the English Civil War, it was eventually slighted, i.e. deliberately destroyed, after being captured by Parliamentary forces after a long siege. The site was subsequently left relatively undeveloped, and the limited remains of the castle walls and the considerable earthworks are now open to the public.
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.
Bedford Castle was a large medieval castle in Bedford, England. Built after 1100 by Henry I, the castle played a prominent part in both the civil war of the Anarchy and the First Barons' War. The castle was significantly extended in stone, although the final plan of the castle remains uncertain. Henry III of England besieged the castle in 1224 following a disagreement with Falkes de Bréauté; the siege lasted eight weeks and involved an army of as many as 2,700 soldiers with equipment drawn from across England. After the surrender of the castle, the king ordered its destruction (slighting).
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.
Skipsea Castle was a Norman motte and bailey castle near the village of Skipsea, East Riding of Yorkshire, England. Built around 1086 by Drogo de la Beuvrière, apparently on the remains of an Iron Age mound, it was designed to secure the newly conquered region, defend against any potential Danish invasion and control the trade route across the region leading to the North Sea. The motte and the bailey were separated by Skipsea Mere, an artificial lake that was linked to the sea during the medieval period via a navigable channel. The village of Skipsea grew up beside the castle church, and the fortified town of Skipsea Brough was built alongside the castle around 1160 to capitalise on the potential trade.
Longtown Castle, also termed Ewias Lacey Castle in early accounts, is a ruined Norman motte-and-bailey fortification in Longtown, Herefordshire. It was established in the 11th century by Walter de Lacy, reusing former Roman earthworks. The castle was then rebuilt in stone by Gilbert de Lacy after 1148, who also established the adjacent town to help pay for the work. By the 14th century, Longtown Castle had fallen into decline. Despite being pressed back into use during the Owain Glyndŵr rising in 1403, it fell into ruin. In the 21st century the castle is maintained by English Heritage and operated as a tourist attraction.
Bakewell Castle was in the town of Bakewell, Derbyshire.
Deddington Castle is an extensive earthwork in the village of Deddington, Oxfordshire, all that remains of an 11th-century motte-and-bailey castle, with only the earth ramparts and mound now visible.
Eaton Socon Castle was a Norman fortification. It was constructed next to the River Great Ouse in what is now Eaton Socon, Cambridgeshire, England.
Thetford Castle is a medieval motte and bailey castle in the market town of Thetford in the Breckland area of Norfolk, England. The first castle in Thetford, a probable 11th-century Norman ringwork called Red Castle, was replaced in the 12th century by a much larger motte and bailey castle on the other side of the town. This new castle was largely destroyed in 1173 by Henry II, although the huge motte, the second largest man-made mound in England, remained intact. The motte, recognised as a scheduled monument, now forms part of a local park, and the remains are known variously as Castle Hill, Castle Mound and Military Parade.
Worcester Castle was a Norman fortification built between 1068 and 1069 in Worcester, England by Urse d'Abetot on behalf of William the Conqueror. The castle had a motte-and-bailey design and was located on the south side of the old Anglo-Saxon city, cutting into the grounds of Worcester Cathedral. Royal castles were owned by the king and maintained on his behalf by an appointed constable. At Worcester that role was passed down through the local Beauchamp family on a hereditary basis, giving them permanent control of the castle and considerable power within the city. The castle played an important part in the wars of the 12th and early 13th century, including the Anarchy and the First Barons' War.
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.
Southampton Castle was located in the town of Southampton in Hampshire, England. Constructed after the Norman conquest of England, it was located in the north-west corner of the town overlooking the River Test, initially as a wooden motte and bailey design. By the late 12th century the royal castle had been largely converted to stone, playing an important part in the wine trade conducted through the Southampton docks. By the end of the 13th century the castle was in decline, but the threat of French raids in the 1370s led Richard II to undertake extensive rebuilding. The result was a powerfully defended castle, one of the first in England to be equipped with cannon. The castle declined again in the 16th century and was sold off to property speculators in 1618. After being used for various purposes, including the construction of a Gothic mansion in the early 19th century, the site was flattened and largely redeveloped. Only a few elements of the castle still remain visible in Southampton.
