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.
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 By the end of the 13th century, the design was largely superseded by alternative forms of fortification, but the earthworks remain a prominent feature in many countries.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, and south to 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; these included 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 up to a decade or more to build.
Clun Castle is a medieval ruined castle in Clun, Shropshire, England. Clun Castle was established by the Norman lord Robert de Say after the Norman invasion of England and went on to become an important Marcher lord castle in the 12th century, with an extensive castle-guard system. Owned for many years by the Fitzalan family, Clun played a key part in protecting the region from Welsh attack until it was gradually abandoned as a property in favour of the more luxurious Arundel Castle. The Fitzalans converted Clun Castle into a hunting lodge in the 14th century, complete with pleasure gardens, but by the 16th century the castle was largely ruined. Slighted in 1646 after the English Civil War, Clun remained in poor condition until renovation work in the 1890s.
Orford Castle is a castle in Orford in the English county of Suffolk, 12 miles (19 km) northeast of Ipswich, with views over Orford Ness. It was built between 1165 and 1173 by Henry II of England to consolidate royal power in the region. The well-preserved keep, described by historian R. Allen Brown as "one of the most remarkable keeps in England", is of a unique design and probably based on Byzantine architecture. The keep stands within the earth-bank remains of the castle's outer fortifications.
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. Although 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.
Dunster Castle is a former motte and bailey castle, now a country house, in the village of Dunster, Somerset, England. The castle lies on the top of a steep hill called the Tor, and has been fortified since the late Anglo-Saxon period. After the Norman conquest of England in the 11th century, William de Mohun constructed a timber castle on the site as part of the pacification of Somerset. A stone shell keep was built on the motte by the start of the 12th century, and the castle survived a siege during the early years of the Anarchy. At the end of the 14th century the de Mohuns sold the castle to the Luttrell family, who continued to occupy the property until the late 20th century.
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.
Eye Castle is a motte and bailey medieval castle with a prominent Victorian addition in the town of Eye, Suffolk. Built shortly after the Norman conquest of England in 1066, the castle was sacked and largely destroyed in 1265. Sir Edward Kerrison built a stone house on the motte in 1844: the house later decayed into ruin, becoming known as Kerrison's Folly in subsequent years.
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.
Peveril Castle is a ruined 11th-century castle overlooking the village of Castleton in the English county of Derbyshire. It was the main settlement of the feudal barony of William Peverel, known as the Honour of Peverel, and was founded some time between the Norman Conquest of 1066 and its first recorded mention in the Domesday Survey of 1086, by Peverel, who held lands in Nottinghamshire and Derbyshire as a tenant-in-chief of the king. The town became the economic centre of the barony. The castle has views across the Hope Valley and Cave Dale.
Warkworth Castle is a ruined medieval castle in Warkworth in the English county of Northumberland. The village and castle occupy a loop of the River Coquet, less than a mile from England's north-east coast. When the castle was founded is uncertain: traditionally its construction has been ascribed to Prince Henry of Scotland, Earl of Northumbria, in the mid-12th century, but it may have been built by King Henry II of England when he took control of England's northern counties. Warkworth Castle was first documented in a charter of 1157–1164 when Henry II granted it to Roger fitz Richard. The timber castle was considered "feeble", and was left undefended when the Scots invaded in 1173.
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.
Newton St Loe Castle was a fortified manor house in the village of Newton St Loe, Somerset, England. Parts of it survive: a 14th-century keep and 15th-century gatehouse, both Grade I listed buildings.
Conwy's town walls are a medieval defensive structure around the town of Conwy in Wales. The walls were constructed between 1283 and 1287 after the foundation of Conwy by Edward I, and were designed to form an integrated system of defence alongside Conwy Castle. The walls are 1.3 km (0.81 mi) long and include 21 towers and three gatehouses. The project was completed using large quantities of labourers brought in from England; the cost of building the castle and walls together came to around £15,000, a huge sum for the period. The walls were slightly damaged during the rebellion of Owain Glyndŵr in 1401, but political changes in the 16th century reduced the need to maintain such defences around the town. The fortifications were treated sympathetically during the development of the road and railway systems in Conwy during the 19th century and survived largely intact into the modern period. Today the walls form part of the UNESCO World Heritage Site administered by Cadw. Historians Oliver Creighton and Robert Higham describe the defences as "one of the most impressive walled circuits" in Europe.
Southampton's town walls are a sequence of defensive structures built around the town in southern England. Although earlier Roman and Anglo-Saxon settlements around Southampton had been fortified with walls or ditches, the later walls originate with the move of the town to the current site in the 10th century. This new town was defended by banks, ditches and the natural curve of the river and coastline. The Normans built a castle in Southampton but made no attempts to improve the wider defences of the town until the early 13th century, when Southampton's growing prosperity as a trading centre and conflict with France encouraged the construction of a number of gatehouses and stone walls to the north and east sides of the settlement.
