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or bailey, surrounded by a protective ditch and palisade.By the end of the 13th century, the design was largely superseded by alternative forms of fortification, but the earthworks remain a prominent feature in many countries.De Colmieu described how the nobles would build "a mound of earth as high as they can and dig a ditch about it as wide and deep as possible.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, reaches to the top of the mound".[16] Many wooden keeps were designed with bretèches, or brattices, small balconies that projected from the upper floors of the building, allowing defenders to cover the base of the fortification wall.[19] The bailey would contain a wide number of buildings, including a hall, kitchens, a chapel, barracks, stores, stables, forges or workshops, and was the centre of the castle's economic activity.[22] Wherever possible, nearby streams and rivers would be dammed or diverted, creating water-filled moats, artificial lakes and other forms of water defences.[28] Regardless of the sequencing, artificial mottes had to be built by piling up earth; this work was undertaken by hand, using wooden shovels and hand-barrows, possibly with picks as well in the later periods.[35] Layers of turf could also be added to stabilise the motte as it was built up, or a core of stones placed as the heart of the structure to provide strength.[39] A popular alternative was the ringwork castle, involving a palisade being built on top of a raised earth rampart, protected by a ditch.[42] The motte-and-bailey castle is a particularly western and northern European phenomenon, most numerous in France and Britain, but also seen in Denmark, Germany, Southern Italy and occasionally beyond.[50][nb 1] Finally, there may be a link between the local geography and the building of motte-and-bailey castles, which are usually built on low-lying areas, in many cases subject to regular flooding.[51] Regardless of the reasons behind the initial popularity of the motte-and-bailey design, however, there is widespread agreement that the castles were first widely adopted in Normandy and Angevin territory in the 10th and 11th centuries.[60] motte-and-bailey castle building substantially enhanced the prestige of local nobles, and it has been suggested that their early adoption was because they were a cheaper way of imitating the more prestigious Höhenburgen built on high ground, but this is usually regarded as unlikely.[75] By the end of the medieval period, however, the terpen gave way to hege wieren, non-residential defensive towers, often on motte-like mounds, owned by the increasingly powerful nobles and landowners.[75] On Zeeland the local lords had a high degree of independence during the 12th and 13th centuries, owing to the wider conflict for power between neighbouring Flanders and Friesland.[80] Except for a handful of motte and bailey castles in Norway, built in the first half of the 11th century and including the royal residence in Oslo, the design did not play a role further north in Scandinavia.[82] There are indications that this may have begun from 1111 onwards under Prince Cadwgan ap Bleddyn, with the first documentary evidence of a native Welsh castle being at Cymmer in 1116.[85] David I encouraged Norman and French nobles to settle in Scotland, introducing a feudal mode of landholding and the use of castles as a way of controlling the contested lowlands.In the late-12th century, the Normans invaded southern Italy and Sicily; although they had the technology to build more modern designs, in many cases wooden motte-and-bailey castles were built instead for reasons of speed.At the end of the 12th century, the Welsh rulers began to build castles in stone, primarily in the principality of North Wales and usually along the higher peaks where mottes were unnecessary.[109] By the 12th century, the castles in Western Germany began to thin in number, due to changes in land ownership, and various mottes were abandoned.[111] In England, motte-and-bailey earthworks were put to various uses over later years; in some cases, mottes were turned into garden features in the 18th century, or reused as military defences during the Second World War.
Plan of
Topcliffe Castle
in North Yorkshire, an archetypal motte-and-bailey design
Castle Pulverbatch
in Shropshire in England was built in the 11th or 12th century and abandoned by 1202. This
digital elevation model
shows the motte just left of centre, with the bailey to the right (north-east) of it.
[
2
]
A cross-section showing the layers within the motte at
Clifford's Tower
in
York
: "A" marks the 20th-century concrete
underpinnings
of the motte; the low walls enclosing the base of the motte are a 19th-century addition.
A reconstruction of England's
Carisbrooke Castle
on the
Isle of Wight
as it was in the 14th century, showing the
keep
built atop the motte (top left), and the walled-in bailey below