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A keep (from the Middle English ''kype'') is a type of
fortified tower A fortified tower (also defensive tower or castle tower or, in context, just tower) is one of the defensive structures used in fortifications, such as castles, along with curtain walls. Castle towers can have a variety of different shapes and fu ...
built within castles during the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
by European
nobility Nobility is a social class found in many societies that have an aristocracy. It is normally ranked immediately below royalty. Nobility has often been an estate of the realm with many exclusive functions and characteristics. The character ...
. 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 castle 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 t ...
s that emerged in
Normandy Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...
and
Anjou Anjou may refer to: Geography and titles France * County of Anjou, a historical county in France and predecessor of the Duchy of Anjou **Count of Anjou, title of nobility *Duchy of Anjou, a historical duchy and later a province of France **Duk ...
during the 10th century; the design spread to England, south Italy and Sicily. As a result of the
Norman invasion The Norman Conquest (or the Conquest) was the 11th-century invasion and occupation of England by an army made up of thousands of Normans, Norman, Duchy of Brittany, Breton, County of Flanders, Flemish, and Kingdom of France, French troops, ...
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. During the 12th century, new designs began to be introduced – in France, quatrefoil-shaped keeps were introduced, while in England
polygon In geometry, a polygon () is a plane figure that is described by a finite number of straight line segments connected to form a closed ''polygonal chain'' (or ''polygonal circuit''). The bounded plane region, the bounding circuit, or the two to ...
al towers were built. By the end of the century, French and English keep designs began to diverge:
Philip II of France Philip II (21 August 1165 – 14 July 1223), byname Philip Augustus (french: Philippe Auguste), was King of France from 1180 to 1223. His predecessors had been known as kings of the Franks, but from 1190 onward, Philip became the first French m ...
built a sequence of circular keeps as part of his bid to stamp his royal authority on his new territories, while in England castles were built without keeps. In Spain, keeps were increasingly incorporated into both Christian and Islamic castles, although in
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
tall fighting towers called ''
bergfried ''Bergfried'' (plural: ''bergfriede''; English: ''belfry''; French: ''tour-beffroi''; Spanish: ''torre del homenaje'') is a tall tower that is typically found in castles of the Middle Ages in German-speaking countries and in countries under Germ ...
e'' were preferred to keeps in the western fashion. In the second half of the 14th century, there was a resurgence in the building of keeps. In France, the keep at
Vincennes Vincennes (, ) is a commune in the Val-de-Marne department in the eastern suburbs of Paris, France. It is located from the centre of Paris. It is next to but does not include the Château de Vincennes and Bois de Vincennes, which are attache ...
began a fashion for tall, heavily
machicolated A machicolation (french: mâchicoulis) is a floor opening between the supporting corbels of a battlement, through which stones or other material, such as boiling water, hot sand, quicklime or boiling cooking oil, could be dropped on attackers at t ...
designs, a trend adopted in Spain most prominently through the
Valladolid Valladolid () is a municipality in Spain and the primary seat of government and de facto capital of the autonomous community of Castile and León. It is also the capital of the province of the same name. It has a population around 300,000 peop ...
school of Spanish castle design. Meanwhile, tower keeps in England became popular amongst the most wealthy nobles: these large keeps, each uniquely designed, formed part of the grandest castles built during the period. In the 15th century, the protective function of keeps was compromised by improved
artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...
. For example, in 1464 during the
Wars of the Roses The Wars of the Roses (1455–1487), known at the time and for more than a century after as the Civil Wars, were a series of civil wars fought over control of the English throne in the mid-to-late fifteenth century. These wars were fought bet ...
, the keep of
Bamburgh Castle Bamburgh Castle is a castle on the northeast coast of England, by the village of Bamburgh in Northumberland. It is a Grade I listed building. The site was originally the location of a Celtic Brittonic fort known as ''Din Guarie'' and may have ...
on the Northumberland coast, previously considered to be impregnable, was defeated with
bombard __NOTOC__ Bombard may refer to the act of carrying out a bombardment. It may also refer to: Individuals *Alain Bombard (1924–2005), French biologist, physician and politician; known for crossing the Atlantic on a small boat with no water or food ...
s. By the 16th century, keeps were slowly falling out of fashion as fortifications and residences. Many were destroyed in civil wars between the 17th and 18th centuries or incorporated into gardens as an alternative to
follies ''Follies'' is a musical with music and lyrics by Stephen Sondheim and a book by James Goldman. The plot takes place in a crumbling Broadway theater, now scheduled for demolition, previously home to a musical revue (based on the ''Ziegfeld Fol ...
. During the 19th century, keeps became fashionable once again and in England and France, a number were restored or redesigned by Gothic architects. Despite further damage to many French and Spanish keeps during the wars of the 20th century, keeps now form an important part of the tourist and heritage industry in Europe.


Etymology and historiography

Since the 16th century, the English word ''keep'' has commonly referred to large towers in castles.Dixon, p.9. The word originates from around 1375 to 1376, coming from the Middle English term ''kype'', meaning basket or cask, and was a term applied to the shell keep at
Guînes Guînes (; vls, Giezene, lang; pcd, Guinne) is a commune in the northern French department of Pas-de-Calais. Historically it was spelt ''Guisnes''. On 7 January 1785, Jean-Pierre Blanchard, a French pioneer in hydrogen-balloon flight, comple ...
, said to resemble a barrel. The term came to be used for other shell keeps by the 15th century. By the 17th century, the word keep lost its original reference to baskets or casks and was popularly assumed to have come from the Middle English word ''keep'', meaning to hold or to protect. Early on, the use of the word ''keep'' became associated with the idea of a tower in a castle that would serve both as a fortified, high-status private residence and a refuge of last resort. The issue was complicated by the building of fortified
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (800 BC to AD ...
towers in Italy called ''tenazza'' that were used as defences of last resort and were also named after the Italian for ''to hold'' or ''to keep''. By the 19th century, Victorian historians incorrectly concluded that the etymology of the words "keep" and ''tenazza'' were linked and that all keeps had fulfilled this military function. As a result of this evolution in meaning, the use of the term ''keep'' in historical analysis today can be problematic.King, pp.190–6. Contemporary medieval writers used various terms for the buildings we would today call keeps. In Latin, they are variously described as ''turris'', ''turris castri'' or ''magna turris'' – a ''tower'', a ''castle tower'', or a ''great tower''. The 12th-century French came to term them a
donjon A keep (from the Middle English ''kype'') 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 ...
, from the Latin ''dominarium'' "lordship", linking the keep and feudal authority. Similarly, medieval Spanish writers called the buildings '' torre del homenaje'', or "tower of homage". In England, ''donjon'' turned into ''dungeon'', which initially referred to a keep, rather than to a place of imprisonment. While the term remains in common academic use, some academics prefer to use the term ''donjon'', and most modern historians warn against using the term "keep" simplistically. The fortifications that we would today call keeps did not necessarily form part of a unified medieval style, nor were they all used in a similar fashion during the period.King, pp.190–6; Dixon, p.12.


History


Timber keeps (9th–12th centuries)

The earliest keeps were built as part of
motte-and-bailey castle 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 t ...
s from the 10th century onwards – a combination of documentary and archaeological evidence places the first such castle, built at Vincy, in 979. These castles were initially built by the more powerful lords of
Anjou Anjou may refer to: Geography and titles France * County of Anjou, a historical county in France and predecessor of the Duchy of Anjou **Count of Anjou, title of nobility *Duchy of Anjou, a historical duchy and later a province of France **Duk ...
in the late 10th and 11th centuries, in particular
Fulk III Fulk III, the Black ( 987–1040; fro, Foulque Nerra), was an early count of Anjou celebrated as one of the first great builders of medieval castles. It is estimated Fulk constructed approximately 100 castles, along with abbeys throughout the Lo ...
and his son, Geoffrey II, who built a great number of them between 987 and 1060.
William the Conqueror William I; ang, WillelmI (Bates ''William the Conqueror'' p. 33– 9 September 1087), usually known as William the Conqueror and sometimes William the Bastard, was the first House of Normandy, Norman List of English monarchs#House of Norman ...
then introduced this form of castle into England when he invaded in 1066, and the design spread through south Wales as the Normans expanded up the valleys during the subsequent decades. In a motte-and-bailey design, a castle would include a mound called a motte, usually artificially constructed by piling up turf and soil, and a bailey, a lower walled enclosure. A keep and a protective wall would usually be built on top of the motte. Some protective walls around a keep would be large enough to have a wall-walk around them, and the outer walls of the motte and the wall-walk could be strengthened by filling in the gap between the wooden walls with earth and stones, allowing it to carry more weight – this was called a ''garillum''. Smaller mottes could only support simple towers with room for a few soldiers, whilst larger mottes could be equipped with a much grander keep.DeVries, p.209. Many wooden keeps were designed with a ''bretasche'', a square structure that overhung from the upper floors of the building, enabling better defences and a more sturdy structural design. These wooden keeps could be protected by skins and hides to prevent them from being easily set alight during a siege. One contemporary account of these keeps comes from Jean de Colmieu around 1130, who described how the nobles of the Calais region would build "a mound of earth as high as they can and dig a ditch about it as wide and deep as possible. The space on top of the mound is enclosed by a palisade of very strong hewn logs, strengthened at intervals by as many towers as their means can provide. Inside the enclosure is a citadel, or keep, which commands the whole circuit of the defences. The entrance to the fortress is by means of a bridge, which, rising from the outer side of the moat and supported on posts as it ascends, reches to the top of the mound." At
Durham Castle Durham Castle is a Norman castle in the city of Durham, England, which has been occupied since 1837 by University College, Durham after its previous role as the residence of the Bishops of Durham. Designated since 1986 as a cultural World Heri ...
, contemporaries described how the keep arose from the "tumulus of rising earth" with a keep reaching "into thin air, strong within and without", a "stalwart house...glittering with beauty in every part". As well as having defensive value, keeps and mottes sent a powerful political message to the local population. Wooden keeps could be quite extensive in size and, as Robert Higham and Philip Barker have noted, it was possible to build "...very tall and massive structures." As an example of what these keeps may have comprised, the early 12th-century chronicler Lambert of Ardres described the wooden keep on top of the motte at the castle of
Ardres Ardres (; vls, Aarden, lang; pcd, Arde) is a commune in the Pas-de-Calais department in northern France. Geography Ardres is located 10.1 mi by rail (station is at Pont-d'Ardres, a few km from Ardres) S.S.E. of Calais, with which it is a ...
, where the "...first storey was on the surface of the ground, where were cellars and granaries, and great boxes, tuns, casks, and other domestic utensils. In the storey above were the dwelling and common living-rooms of the residents in which were the larders, the rooms of the bakers and butlers, and the great chamber in which the lord and his wife slept...In the upper storey of the house were garret rooms...In this storey also the watchmen and the servants appointed to keep the house took their sleep." In the
Holy Roman Empire The Holy Roman Empire was a political entity in Western, Central, and Southern Europe that developed during the Early Middle Ages and continued until its dissolution in 1806 during the Napoleonic Wars. From the accession of Otto I in 962 ...
, tall, free-standing, wooden (later stone), fighting towers called ''
Bergfried ''Bergfried'' (plural: ''bergfriede''; English: ''belfry''; French: ''tour-beffroi''; Spanish: ''torre del homenaje'') is a tall tower that is typically found in castles of the Middle Ages in German-speaking countries and in countries under Germ ...
e'' were commonly built by the 11th century, either as part of motte-and-bailey designs or, as part of ''Hohenburgen'' castles, with characteristic inner and outer courts. ''Bergfriede'', which take their name from the German for a belfry, had similarities to keeps, but are usually distinguished from them on account of ''Bergfriede'' having a smaller area or footprint, usually being non-residential and being typically integrated into the outer defences of a castle, rather than being a safe refuge of last resort.


Early stone keeps (10th–12th centuries)

During the 10th century, a small number of stone keeps began to be built in France, such at the Château de Langeais: in the 11th century, their numbers increased as the style spread through Normandy across the rest of France and into England, South Italy and Sicily. Some existing motte-and-bailey castles were converted to stone, with the keep amongst usually the first parts to be upgraded, while in other cases new keeps were built from scratch in stone. These stone keeps were introduced into Ireland during the 1170s following the Norman occupation of the east of the country, where they were particularly popular amongst the new Anglo-Norman lords. Two broad types of design emerged across France and England during the period: four-sided stone keeps, known as Norman keeps or great keeps in English – a ''donjon carré'' or ''donjon roman'' in French – and circular shell keeps. The reasons for the transition from timber to stone keeps are unclear, and the process was slow and uneven, taking many years to take effect across the various regions.Brown, p.36. Traditionally it was believed that stone keeps had been adopted because of the cruder nature of wooden buildings, the limited lifespan of wooden fortifications and their vulnerability to fire, but recent archaeological studies have shown that many wooden castles were as robust and as sophisticated as their stone equivalents. Some wooden keeps were not converted into stone for many years and were instead expanded in wood, such as at
Hen Domen Hen Domen Welsh, meaning "old mound", is the site of a medieval timber motte-and-bailey castle in Powys, Wales. It is the site of the original Montgomery Castle, and was built by Roger de Montgomery in 1070. From 1105 the castle was the home of t ...
. Nonetheless, stone became increasingly popular as a building material for keeps for both military and symbolic reasons. Stone keep construction required skilled craftsmen. Unlike timber and earthworks, which could be built using
unfree labour Forced labour, or unfree labour, is any work relation, especially in modern or early modern history, in which people are employed against their will with the threat of destitution, detention, violence including death, or other forms of ex ...
or serfs, these craftsmen had to be paid and stone keeps were therefore expensive.Pounds, p.20. They were also relatively slow to erect, due to the limitations of the
lime mortar Lime mortar or torching is composed of lime and an aggregate such as sand, mixed with water. The ancient Egyptians were the first to use lime mortars, which they used to plaster their temples. In addition, the Egyptians also incorporated various ...
used during the period – a keep's walls could usually be raised by a maximum of only 12 feet (3.6 metres) a year; the keep at
Scarborough Scarborough or Scarboro may refer to: People * Scarborough (surname) * Earl of Scarbrough Places Australia * Scarborough, Western Australia, suburb of Perth * Scarborough, New South Wales, suburb of Wollongong * Scarborough, Queensland, su ...
was not atypical in taking ten years to build. The number of such keeps remained relatively low: in England, for example, although several early stone keeps had been built after the conquest, there were only somewhere between ten and fifteen in existence by 1100, and only around a hundred had been built by 1216. Norman keeps had four sides, with the corners reinforced by
pilaster In classical architecture, a pilaster is an architectural element used to give the appearance of a supporting column and to articulate an extent of wall, with only an ornamental function. It consists of a flat surface raised from the main wal ...
buttress A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall. Buttresses are fairly common on more ancient buildings, as a means of providing support to act against the lateral ( ...
es; some keeps, particularly in Normandy and France, had a ''barlongue'' design, being rectangular in plan with their length twice their width, while others, particularly in England, formed a square. These keeps could be up to four storeys high, with the entrance placed on the first storey to prevent the door from being easily broken down; early French keeps had external stairs in wood, whilst later castles in both France and England built them in stone. In some cases the entrance stairs were protected by additional walls and a door, producing a forebuilding.King, p.67. The strength of the Norman design typically came from the thickness of the keep's walls: usually made of
rag-stone Rag-stone is a name given by some architectural writers to work done with stones that are quarried in thin pieces, such as Horsham Stone, sandstone, Yorkshire stone, and the slate stones, but this is more properly flag or slab work. Near London ...
, these could be up to 24 feet (7.3 metres) thick, immensely strong, and producing a steady temperature inside the building throughout summer and winter. The larger keeps were subdivided by an internal wall while the smaller versions had a single, slightly cramped chamber on each floor. Usually only the first floor would be
vaulted In architecture, a vault (French ''voûte'', from Italian ''volta'') is a self-supporting arched form, usually of stone or brick, serving to cover a space with a ceiling or roof. As in building an arch, a temporary support is needed while ring ...
in stone, with the higher storeys supported with timbers. There has been extensive academic discussion of the extent to which Norman keeps were designed with a military or political function in mind, particularly in England. Earlier analyses of Norman keeps focused on their military design, and historians such as R. Brown Cathcart King proposed that square keeps were adopted because of their military superiority over timber keeps. Most of these Norman keeps were certainly extremely physically robust, even though the characteristic pilaster buttresses added little real architectural strength to the design. Many of the weaknesses inherent to their design were irrelevant during the early part of their history. The corners of square keeps were theoretically vulnerable to
siege engines A siege engine is a device that is designed to break or circumvent heavy castle doors, thick city walls and other fortifications in siege warfare. Some are immobile, constructed in place to attack enemy fortifications from a distance, while other ...
and galleried
mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...
, but before the introduction of the
trebuchet A trebuchet (french: trébuchet) is a type of catapult that uses a long arm to throw a projectile. It was a common powerful siege engine until the advent of gunpowder. The design of a trebuchet allows it to launch projectiles of greater weight ...
at the end of the 12th century, early artillery stood little practical chance of damaging the keeps, and galleried mining was rarely practised. Similarly, the corners of a square keep created dead space that defenders could not fire at, but missile fire in castle sieges was less important until the introduction of the
crossbow A crossbow is a ranged weapon using an elastic launching device consisting of a bow-like assembly called a ''prod'', mounted horizontally on a main frame called a ''tiller'', which is hand-held in a similar fashion to the stock of a long fire ...
in the middle of the 12th century, when
arrowslit An arrowslit (often also referred to as an arrow loop, loophole or loop hole, and sometimes a balistraria) is a narrow vertical aperture in a fortification through which an archer can launch arrows or a crossbowman can launch bolts. The interio ...
s began to be introduced. Nonetheless, many stone Norman keeps made considerable compromises to military utility.
Norwich Castle Norwich Castle is a medieval royal fortification in the city of Norwich, in the English county of Norfolk. William the Conqueror (1066–1087) ordered its construction in the aftermath of the Norman conquest of England. The castle was used as a ...
, for example, included elaborate blind arcading on the outside of the building and appears to have had an entrance route designed for public ceremony, rather than for defence. The interior of the keep at Hedingham could certainly have hosted impressive ceremonies and events, but contained numerous flaws from a military perspective. Important early English and Welsh keeps such as the White Tower,
Colchester Colchester ( ) is a city in Essex, in the East of England. It had a population of 122,000 in 2011. The demonym is Colcestrian. Colchester occupies the site of Camulodunum, the first major city in Roman Britain and its first capital. Colch ...
, and
Chepstow Chepstow ( cy, Cas-gwent) is a town and community in Monmouthshire, Wales, adjoining the border with Gloucestershire, England. It is located on the tidal River Wye, about above its confluence with the River Severn, and adjoining the wester ...
were all built in a distinctive Romanesque style, often reusing Roman materials and sites, and were almost certainly intended to impress and generate a political effect amongst local people. The political value of these keep designs, and the social prestige they lent to their builders, may help explain why they continued to be built in England into the late 12th century, beyond the point when military theory would have suggested that alternative designs were adopted. The second early stone design, emerging from the 12th century onwards, was the shell keep, a ''donjon annulaire'' in French, which involved replacing the wooden keep on a motte, or the palisade on a
ringwork A ringwork is a form of fortified defensive structure, usually circular or oval in shape. Ringworks are essentially motte-and-bailey castles without the motte. Defences were usually earthworks in the form of a ditch and bank surrounding the sit ...
, with a circular stone wall. Shell keeps were sometimes further protected by an additional low protective wall, called a chemise, around their base. Buildings could then be built around the inside of the shell, producing a small inner courtyard at the centre.Brown, p.42. The style was particularly popular in south-east England and across Normandy, although less so elsewhere.
Restormel Castle Restormel Castle ( kw, Kastel Rostorrmel) 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 ...
is a classic example of this development, as is the later
Launceston Castle 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 Castl ...
; prominent Normandy and Low Country equivalents include
Gisors Gisors () is a commune of Normandy, France. It is located northwest from the centre of Paris. Gisors, together with the neighbouring communes of Trie-Château and Trie-la-Ville, form an urban area of 13,915 inhabitants (2018). This urban are ...
and the
Burcht van Leiden The Burcht van Leiden (; Fort of Leiden) is an old shell keep in Leiden constructed in the 11th century. It is located at the spot where two tributaries of the Rhine come together, the Oude Rijn and the Nieuwe Rijn. The structure is on top of a ...
– these castles were amongst the most powerful fortifications of the period. Although the circular design held military advantages over one with square corners, as noted above these really mattered from only the end of the 12th century onwards; the major reason for adopting a shell keep design, in the 12th century at least, was the circular design of the original earthworks exploited to support the keep; indeed, some designs were less than circular in order to accommodate irregular mottes, such as that found at
Windsor Castle Windsor Castle is a royal residence at Windsor in the English county of Berkshire. It is strongly associated with the English and succeeding British royal family, and embodies almost a millennium of architectural history. The original c ...
.Hulme, p.222.


Mid-medieval keeps (late 12th–14th centuries)

During the second half of the 12th century, a range of new keep designs began to appear across France and England, breaking the previous unity of the regional designs. The use of keeps in castles spread through Iberia, but some new castles never incorporated keeps in their designs. One traditional explanation for these developments emphasises the military utility of the new approaches, arguing, for example, that the curved surfaces of the new keeps helped to deflect attacks, or that they drew on lessons learnt during the Crusades from Islamic practices in the Levant. More recent historical analysis, however, has emphasised the political and social drivers that underlay these mid-medieval changes in keep design. Through most of the 12th century, France was divided between the Capetian kings, ruling from the
Île-de-France The Île-de-France (, ; literally "Isle of France") is the most populous of the eighteen regions of France. Centred on the capital Paris, it is located in the north-central part of the country and often called the ''Région parisienne'' (; en, Pa ...
, and kings of England, who controlled Normandy and much of the west of France. Within the Capetian territories, early experimentation in new keep designs began at
Houdan Houdan () is a commune of the Yvelines department west of Paris in the north of France. History The name has evolved from the Saxon "Hoding," meaning "settlement on the hill". Houdan is thought to have been inhabited since the 5th century. B ...
in 1120, where a circular keep was built with four round turrets; internally, however, the structure remained conventionally square. A few years later, Château d'Étampes adopted a quatrefoil design. These designs, however, remained isolated experiments. In the 1190s, however, the struggle for power in France began to swing in favour of
Philip II Philip II may refer to: * Philip II of Macedon (382–336 BC) * Philip II (emperor) (238–249), Roman emperor * Philip II, Prince of Taranto (1329–1374) * Philip II, Duke of Burgundy (1342–1404) * Philip II, Duke of Savoy (1438-1497) * Philip ...
, culminating in the Capetian capture of Normandy in 1204. Philip II started to construct completely circular keeps, such as the Tour Jeanne d'Arc, with most built in his newly acquired territories. The first of Philip's new keeps was begun at the
Louvre The Louvre ( ), or the Louvre Museum ( ), is the world's most-visited museum, and an historic landmark in Paris, France. It is the home of some of the best-known works of art, including the ''Mona Lisa'' and the ''Venus de Milo''. A central l ...
in 1190 and at least another twenty followed, all built to a consistent standard and cost. The architectural idea of circular keeps may have come from
Catalonia Catalonia (; ca, Catalunya ; Aranese Occitan: ''Catalonha'' ; es, Cataluña ) is an autonomous community of Spain, designated as a '' nationality'' by its Statute of Autonomy. Most of the territory (except the Val d'Aran) lies on the nort ...
, where circular towers in castles formed a local tradition, and probably carried some military advantages, but Philip's intention in building these new keeps in a fresh style was clearly political, an attempt to demonstrate his new power and authority over his extended territories. As historian Philippe Durand suggests, these keeps provided military security and were a physical representation of the ''renouveau capétien'', or Capetian renewal. Keep design in England began to change only towards the end of the 12th century, later than in France.King, p.77. Wooden keeps on mottes ceased to be built across most of England by the 1150s, although they continued to be erected in Wales and along the Welsh Marches. By the end of the 12th century, England and Ireland saw a handful of innovative angular or polygonal keeps built, including the keep at
Orford Castle Orford Castle is a castle in Orford in the English county of Suffolk, 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 ...
, with three rectangular, clasping towers built out from the high, circular central tower; the cross-shaped keep of
Trim Castle Trim Castle ( ga, Caisleán Bhaile Átha Troim) is a castle on the south bank of the River Boyne in Trim, County Meath, Ireland, with an area of 30,000 m2. Over a period of 30 years, it was built by Hugh de Lacy and his son Walter as ...
and the famous polygonal design at Conisborough. Despite these new designs, square keeps remained popular across much of England and, as late as the 1170s, square Norman great keeps were being built at
Newcastle Newcastle usually refers to: *Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England *Newcastle-under-Lyme, a town in Staffordshire, England *Newcastle, New South Wales, a metropolitan area in Australia, named after Newcastle ...
. Circular keep designs similar to those in France really became popular in Britain in the Welsh Marches and Scotland for only a short period during the early 13th century. As with the new keeps constructed in France, these Anglo-Norman designs were informed both by military thinking and by political drivers. The keep at Orford has been particularly extensively analysed in this regard, and although traditional explanations suggested that its unusual plan was the result of an experimental military design, more recent analysis concludes that the design was instead probably driven by political symbolism and the need for Henry to dominate the contested lands of East Anglia.Liddiard (2005), p.47. The architecture would, for mid-12th century nobility, have summoned up images of King Arthur or
Constantinople la, Constantinopolis ota, قسطنطينيه , alternate_name = Byzantion (earlier Greek name), Nova Roma ("New Rome"), Miklagard/Miklagarth (Old Norse), Tsargrad ( Slavic), Qustantiniya ( Arabic), Basileuousa ("Queen of Cities"), Megalopolis ( ...
, then the idealised versions of royal and imperial power. Even formidable military designs such as that at Château Gaillard were built with political effect in mind.Liddiard (2005), p.54. Gaillard was designed to reaffirm Angevin authority in a fiercely disputed conflict zone and the keep, although militarily impressive, contained only an anteroom and a royal audience chamber, and was built on soft chalk and without an internal well, both serious defects from a defensive perspective. During most of the medieval period, Iberia was divided between Christian and Islamic kingdoms, neither of which traditionally built keeps, instead building watchtowers or mural towers. By the 12th century, however, the influence of France and the various military orders was encouraging the development of square keeps in Christian castles across the region, and by the second half of the century this practice was spread across into the Islamic kingdoms. By contrast, the remainder of Europe saw stone towers being used in castles, but not in a way that fulfilled the range of functions seen in the western European keeps. In the Low Countries, it became popular for the local nobility to build stand-alone, square towers, but rarely as part of a wider castle. Similarly, square stone towers became popular in Venice, but these did not fulfil the same role as western keeps. In Germany, rectangular stone castles began to replace motte-and-bailey castles from the 12th century onwards.Taylor, p.7. These designs included stone versions of the traditional ''Bergfriede'', which still remained distinct from the domestic keeps used in more western parts of Europe, with the occasional notable exception, such as the large, residential ''Bergfried'' at
Eltville Eltville am Rhein (from ''Alta Villa'', Latin for "high estate, high town", corrupted to ''Eldeville'', ''Elfeld'' and later Eltville, ) is a town in the Rheingau-Taunus-Kreis in the ''Regierungsbezirk'' of Darmstadt in Hesse, Germany. It lies on ...
Castle. Several designs for new castles emerged that made keeps unnecessary. One such design was the concentric approach, involving exterior walls guarded with towers, and perhaps supported by further, concentric layered defenses: thus castles such as
Framlingham Framlingham is a market town and civil parish in Suffolk, England. Of Anglo-Saxon origin, it appears in the 1086 Domesday Book. The parish had a population of 3,342 at the 2011 Census and an estimated 4,016 in 2019. Nearby villages include Ea ...
never had a central keep. Military factors may well have driven this development: R. Brown, for example, suggests that designs with a separate keep and bailey system inherently lacked a co-ordinated and combined defensive system, and that once bailey walls were sophisticated enough, a keep became militarily unnecessary. In England,
gatehouse A gatehouse is a type of fortified gateway, an entry control point building, enclosing or accompanying a gateway for a town, religious house, castle, manor house, or other fortification building of importance. Gatehouses are typically the mo ...
s were also growing in size and sophistication until they too challenged the need for a keep in the same castle. The classic
Edwardian The Edwardian era or Edwardian period of British history spanned the reign of King Edward VII, 1901 to 1910 and is sometimes extended to the start of the First World War. The death of Queen Victoria in January 1901 marked the end of the Victori ...
gatehouse, with two large, flanking towers and multiple portcullises, designed to be defended from attacks both within and outside the main castle, has been often compared to the earlier Norman keeps: some of the largest gatehouses are called gatehouse keeps for this reason. The
quadrangular castle A quadrangular castle or courtyard castle is a type of castle characterised by ranges of buildings which are integral with the curtain walls, enclosing a central ward or quadrangle, and typically with angle towers. There is no keep and frequent ...
design that emerged in France during the 13th century was another development that removed the need for a keep. Castles had needed additional living space since their first emergence in the 9th century; initially this had been provided by halls in the bailey, then later by ranges of chambers alongside the inside of a bailey wall, such as at Goodrich. But French designs in the late 12th century took the layout of a contemporary unfortified manor house, whose rooms faced around a central, rectangular courtyard, and built a wall around them to form a castle. The result, illustrated initially at
Yonne Yonne () is a department in the Bourgogne-Franche-Comté region in France. It is named after the river Yonne, which flows through it, in the country's north-central part. One of Bourgogne-Franche-Comté's eight constituent departments, it is l ...
, and later at
Château de Farcheville The Château de Farcheville is a 14th-century castle in the '' commune'' of Bouville near Paris in the ''département'' of Essonne. The castle was built between 1290 and 1304, by Hughes II de Bouville and Hugues III, Lords of Farcheville and Bou ...
, was a characteristic quadrangular layout with four large, circular corner towers. It lacked a keep, which was not needed to support this design.


Late medieval keeps (14th–16th centuries)

The end of the medieval period saw a fresh resurgence in the building of keeps in western castles. Some castles continued to be built without keeps: the
Bastille The Bastille (, ) was a fortress in Paris, known formally as the Bastille Saint-Antoine. It played an important role in the internal conflicts of France and for most of its history was used as a state prison by the kings of France. It was stor ...
in the 1370s, for example, combined a now traditional quadrangular design with machicolated corner towers, gatehouses and moat; the walls, innovatively, were of equal height to the towers. This fashion became copied across French and in England, particularly amongst the ''
nouveau riche ''Nouveau riche'' (; ) is a term used, usually in a derogatory way, to describe those whose wealth has been acquired within their own generation, rather than by familial inheritance. The equivalent English term is the "new rich" or "new money" ( ...
'', for example at
Nunney Nunney is a village and civil parish in the Mendip local government district within the English county of Somerset. It is located south-west of Frome and the parish includes the hamlet of Holwell. The name of the village comes from Old Englis ...
. The royalty and the very wealthiest in France, England and Spain, however, began to construct a small number of keeps on a much larger scale than before, in England sometimes termed tower keeps, as part of new palace fortresses. This shift reflected political and social pressures, such as the desire of the wealthiest lords to have privacy from their growing households of retainers, as well as the various architectural ideas being exchanged across the region, despite the ongoing Hundred Years War between France and England. The resurgence in French keep design began after the defeat of the royal armies at the battles of Crécy in 1346 and Poitiers in 1356, which caused high levels of social unrest across the remaining French territories.Durand, p.81; Purton, p.140.
Charles V of France Charles V (21 January 1338 – 16 September 1380), called the Wise (french: le Sage; la, Sapiens), was King of France from 1364 to his death in 1380. His reign marked an early high point for France during the Hundred Years' War, with his armi ...
attempted to restore French royal authority and prestige through the construction of a new range of castles. The Château de Vincennes, where a new keep was completed under Charles by 1380, was the first example of these ''palace fortresses''. The keep at Vincennes was highly innovative: six stories high, with a ''
chemin de ronde A ''chemin de ronde'' (French, "round path"' or "patrol path"; ), also called an allure, alure or, more prosaically, a wall-walk, is a raised protected walkway behind a castle battlement. In early fortifications, high castle walls were difficul ...
'' running around the
machicolated A machicolation (french: mâchicoulis) is a floor opening between the supporting corbels of a battlement, through which stones or other material, such as boiling water, hot sand, quicklime or boiling cooking oil, could be dropped on attackers at t ...
battlements; the luxuriously appointed building was protected by an ''
enceinte Enceinte (from Latin incinctus: girdled, surrounded) is a French term that refers to the "main defensive enclosure of a fortification". For a castle, this is the main defensive line of wall towers and curtain walls enclosing the position. Fo ...
'' wall that formed a "fortified envelope" around the keep. The Vincennes keep was copied elsewhere across France, particularly as the French kings reconquered territories from the English, encouraging a style that emphasised very tall keeps with prominent machicolations. No allowance for the emerging new gunpowder weapons was made in these keeps, although later in the century
gunport A gunport is an opening in the side of the hull of a ship, above the waterline, which allows the muzzle of artillery pieces mounted on the gun deck to fire outside. The origin of this technology is not precisely known, but can be traced back to t ...
s were slowly being added, as for example by Charles VI to his keep at
Saint-Malo Saint-Malo (, , ; Gallo: ; ) is a historic French port in Ille-et-Vilaine, Brittany, on the English Channel coast. The walled city had a long history of piracy, earning much wealth from local extortion and overseas adventures. In 1944, the Alli ...
. The French model spread into Iberia in the second half of the century, where the most powerful nobles in Castile built a number of similar tall keeps, such as that at Peñafiel, taking advantage of the weakness of the Castilian Crown during the period.
Henry IV of Castile Henry IV of Castile ( Castilian: ''Enrique IV''; 5 January 1425 – 11 December 1474), King of Castile and León, nicknamed the Impotent, was the last of the weak late-medieval kings of Castile and León. During Henry's reign, the nobles became ...
responded in the 15th century by creating a sequence of royal castles with prominent keeps at the
Castle of La Mota The Castle of La Mota or Castillo de La Mota is a medieval fortress, located in the town of Medina del Campo, province of Valladolid, Spain. It is so named because of its location on an elevated hill, a ''mota'' (in Spanish), from where it domin ...
, Portillo, and Alcázar of Segovia: built to particular proportions, these keeps became known as a key element of the Valladolid school of Spanish castle design.Kaufmann and Kaufmann, p.284. Smaller versions of these keeps were subsequently built by many aspiring new aristocracy in Spain, including many converted
Jew Jews ( he, יְהוּדִים, , ) or Jewish people are an ethnoreligious group and nation originating from the Israelites Israelite origins and kingdom: "The first act in the long drama of Jewish history is the age of the Israelites""T ...
s, keen to improve their social prestige and position in society. The French model of tall keeps was also echoed in some German castles, such as that at
Karlštejn Karlštejn Castle ( cs, hrad Karlštejn; german: Burg Karlstein) is a large Gothic castle founded in 1348 by Charles IV, Holy Roman Emperor-elect and King of Bohemia. The castle served as a place for safekeeping the Imperial Regalia as well as ...
, although the layout and positioning of these towers still followed the existing ''bergfried'' model, rather than that in western castles. The 15th and 16th centuries saw a small number of English and occasional Welsh castles develop still grander keeps. The first of these large ''tower keeps'' were built in the north of England during the 14th century, at locations such as Warkworth. They were probably partially inspired by designs in France, but they also reflected the improvements in the security along the Scottish border during the period, and the regional rise of major noble families such as the Percies and the Nevilles, whose wealth encouraged a surge in castle building at the end of the 14th century. New castles at Raby,
Bolton Bolton (, locally ) is a large town in Greater Manchester in North West England, formerly a part of Lancashire. A former mill town, Bolton has been a production centre for textiles since Flemish weavers settled in the area in the 14th ...
, and Warkworth Castle took the quadrangular castle styles of the south and combined them with exceptionally large tower keeps to form a distinctive, northern style. Built by major noble houses, these castles were typically even more opulent than the smaller castles like Nunney, built by the ''nouveau riche''. They marked what historian Anthony Emery has described as a "...second peak of castle building in England and Wales," following on from the Edwardian designs at the end of the 14th century. In the 15th century, the fashion for the creation of very expensive, French-influenced palatial castles featuring complex tower keeps spread, with new keeps being built at Wardour,
Tattershall Tattershall is a village and civil parish in the East Lindsey district of Lincolnshire, England. It is situated on the A153 Horncastle to Sleaford road, east from the point where that road crosses the River Witham. At its eastern end, Tatter ...
, and
Raglan Castle Raglan Castle ( cy, Castell Rhaglan) is a late medieval castle located just north of the village of Raglan in the county of Monmouthshire in south east Wales. The modern castle dates from between the 15th and early 17th centuries, when the succ ...
.Pounds, p.271. In central and eastern England, some keeps began to be built in brick, with
Caister Caister-on-Sea, also known colloquially as Caister, is a large village and seaside resort in Norfolk, England. It is close to the large town of Great Yarmouth. At the 2001 census it had a population of 8,756 and 3,970 households, the populati ...
and Tattershall forming examples of this trend. In Scotland, the construction of Holyrood Great Tower between 1528 and 1532 drew on this English tradition, but incorporated additional French influences to produce a highly secure but comfortable keep, guarded by a gun park. These tower keeps were expensive buildings to construct, each built to a unique design for a specific lord and, as historian Norman Pounds has suggested, they "...were designed to allow very rich men to live in luxury and splendour." At the same time as these keeps were being built by the extremely wealthy, much smaller, keep-like structures called
tower house A tower house is a particular type of stone structure, built for defensive purposes as well as habitation. Tower houses began to appear in the Middle Ages, especially in mountainous or limited access areas, in order to command and defend strateg ...
s or peel towers were built across Ireland, Scotland, and northern England, often by relatively poorer local lords and landowners. It was originally argued that Irish tower houses were based on the Scottish design, but the pattern of development of such castles in Ireland does not support this hypothesis. A tower house would typically be a tall, square, stone-built, crenelated building; Scottish and Ulster tower houses were often also surrounded by a barmkyn or bawn wall. Most academics have concluded that tower houses should not be classified as keeps but rather as a form of fortified house. As the 16th century progressed, keeps fell out of fashion once again. In England, the gatehouse also began to supplant the keep as the key focus for a new castle development.Thompson (1994), pp.73, 125. By the 15th century, it was increasingly unusual for a lord to build both a keep and a large gatehouse at the same castle, and by the early 16th century, the gatehouse had easily overtaken the keep as the more fashionable feature: indeed, almost no new keeps were built in England after this period. The classical
Palladian Palladian architecture is a European architectural style derived from the work of the Venetian architect Andrea Palladio (1508–1580). What is today recognised as Palladian architecture evolved from his concepts of symmetry, perspective and ...
style began to dominate European architecture during the 17th century, causing a further move away from the use of keeps. Buildings in this style usually required considerable space for the enfiladed formal rooms that became essential for modern palaces by the middle of the century, and this style was impossible to fit into a traditional keep. The keep at
Bolsover Castle Bolsover Castle is in the town of Bolsover (), in the north-east of the English county of Derbyshire. Built in the early 17th century, the present castle lies on the earthworks and ruins of the 12th-century medieval castle; the first structure of ...
in England was one of the few to be built as part of a Palladian design.


Later use and destruction of keeps (17th–21st centuries)

From the 17th century onwards, some keeps were deliberately destroyed. In England, many were destroyed after the end of the
Second English Civil War The Second English Civil War took place between February to August 1648 in Kingdom of England, England and Wales. It forms part of the series of conflicts known collectively as the 1639-1651 Wars of the Three Kingdoms, which include the 1641 ...
in 1649, when Parliament took steps to prevent another royalist uprising by
slighting Slighting is the deliberate damage of high-status buildings to reduce their value as military, administrative or social structures. This destruction of property sometimes extended to the contents of buildings and the surrounding landscape. It is ...
, or damaging, castles so as to prevent them from having any further military utility. Slighting was quite expensive and took considerable effort to carry out, so damage was usually done in the most cost efficient fashion with only selected walls being destroyed. Keeps were singled out for particular attention in this process because of their continuing political and cultural importance, and the prestige they lent their former royalist owners – at
Kenilworth Kenilworth ( ) is a market town and civil parish in the Warwick District in Warwickshire, England, south-west of Coventry, north of Warwick and north-west of London. It lies on Finham Brook, a tributary of the River Sowe, which joins the ...
, for example, only the keep was slighted, and at Raglan, the keep was the main focus of parliamentary activity. There was some equivalent destruction of keeps in France in the 17th and 18th centuries, such as the slighting of Montaiguillon by Cardinal Richelieu in 1624, but the catalogue of damage was far less than that of the 1640s and early 1650s in England. In England, ruined medieval castles became fashionable again in the middle of the 18th century. They were considered an interesting counterpoint to Palladian classical architecture, and gave a degree of medieval allure to their owners. Some keeps were modified to exaggerate this effect:
Hawarden Hawarden (; cy, Penarlâg) is a village, community and electoral ward in Flintshire, Wales. It is part of the Deeside conurbation on the Wales-England border and is home to Hawarden Castle. In the 2011 census the ward of the same name had ...
, for example, was remodelled to appear taller but also more decayed, the better to produce a good silhouette. The interest continued and, in the late 18th and 19th century, it became fashionable to build intact, replica castles in England, resulting in what A. Rowan has called the ''Norman style'' of new castle building, characterised by the inclusion of large keeps; the final replica keep to be built in this way was at
Penrhyn Penryn is a Cornish word meaning 'headland' that may refer to: *Penryn, Cornwall, United Kingdom, a town of about 7,000 on the Penryn River **Penryn railway station, a station on the Maritime Line between Truro and Falmouth Docks, and serves the t ...
between 1820 and 1840. Where there was an existing castle on a site, another response across 19th-century Europe was to attempt to improve the buildings, bringing their often chaotic historic features into line with a more integrated architectural aesthetic, in a style often termed Gothic Revivalism.Jones, p.4. There were numerous attempts to restore or rebuild keeps so as to produce this consistently Gothic style: in England, the architect
Anthony Salvin Anthony Salvin (17 October 1799 – 17 December 1881) was an English architect. He gained a reputation as an expert on medieval buildings and applied this expertise to his new buildings and his restorations. He restored castles and country h ...
was particularly prominent – as illustrated by reworking and heightening of the keep at
Windsor Castle Windsor Castle is a royal residence at Windsor in the English county of Berkshire. It is strongly associated with the English and succeeding British royal family, and embodies almost a millennium of architectural history. The original c ...
, while in France,
Eugène Viollet-le-Duc Eugène Emmanuel Viollet-le-Duc (; 27 January 181417 September 1879) was a French architect and author who restored many prominent medieval landmarks in France, including those which had been damaged or abandoned during the French Revolution. H ...
reworked the keeps at castles in locations like Pierrefonds during the 1860s and 1870s, admittedly in a largely speculative fashion, since the original keep had been mostly destroyed in 1617. The
Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlists, and The Rebellion ( es, La Rebelión, link ...
and
First First or 1st is the ordinal form of the number one (#1). First or 1st may also refer to: *World record, specifically the first instance of a particular achievement Arts and media Music * 1$T, American rapper, singer-songwriter, DJ, and rec ...
and
Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ...
s in the 20th century caused damage to many castle keeps across Europe; in particular, the famous keep at Coucy was destroyed by the German Army in 1917. By the late 20th century the conservation of castle keeps formed part of government policy across France, England, Ireland, and Spain. In the 21st century in England, most keeps are in ruins and form part of the
tourism Tourism is travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours. The World Tourism Organization defines tourism mor ...
and
heritage Heritage may refer to: History and society * A heritage asset is a preexisting thing of value today ** Cultural heritage is created by humans ** Natural heritage is not * Heritage language Biology * Heredity, biological inheritance of physica ...
industries, rather than being used as functioning buildings – the keep of
Windsor Castle Windsor Castle is a royal residence at Windsor in the English county of Berkshire. It is strongly associated with the English and succeeding British royal family, and embodies almost a millennium of architectural history. The original c ...
being a rare exception. In Germany, large numbers of the ''
bergfried ''Bergfried'' (plural: ''bergfriede''; English: ''belfry''; French: ''tour-beffroi''; Spanish: ''torre del homenaje'') is a tall tower that is typically found in castles of the Middle Ages in German-speaking countries and in countries under Germ ...
'' towers were restored as functional buildings in the late 19th and early 20th centuries, often as government offices or
youth hostel A hostel is a form of low-cost, short-term shared sociable lodging where guests can rent a bed, usually a bunk bed in a dormitory, with shared use of a lounge and sometimes a kitchen. Rooms can be mixed or single-sex and have private or shared ...
s, or the modern conversion of tower houses, which in many cases have become modernised domestic homes.Taylor, pp.285–8, 291.


See also

*
Tenshu is an architectural typology found in Japanese castle complexes. They are easily identifiable as the highest tower within the castle. Common translations of ''tenshu'' include keep, main keep, or ''donjon''. ''Tenshu'' are characterized as ty ...
, the Japanese castle keep *
Medieval architecture Medieval architecture is architecture common in the Middle Ages, and includes religious, civil, and military buildings. Styles include pre-Romanesque, Romanesque, and Gothic. While most of the surviving medieval architecture is to be seen in ...
*Semi-fortified Romanian
culă A ''culă'' (plural: ''cule''; from Turkish language, Turkish ''kule'' "tower, turret") is a semi-fortified building found in the Oltenia region of Romania with a number of examples located in the historical province of Muntenia. They were original ...
* Čardak, similar fortifications used by South Slavs


Notes


References


Bibliography

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Further reading

* {{Authority control Castle architecture Fortified towers by type