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Curtain wall (fortification)

Acurtain wall is a defensive wall between fortified towersorbastions of a castle, fortress,^[1] or town.^[2]

Ancient fortifications[edit]

Evidence for curtain walls or a series of walls surrounding a town or fortress can be found in the historical sources from Assyria and Egypt. Some notable examples are ancient Tel Lachish in Israel and Buhen in Egypt. Curtain walls were built across Europe during the Roman Empire; the early 5th century Theodosian WallsofConstantinople influenced the builders of medieval castles many centuries later.^[3]

Curtain wall castles[edit]

In medieval castles, the area surrounded by a curtain wall, with or without towers, is known as the bailey.^[4] The outermost walls with their integrated bastions and wall towers together make up the enceinte or main defensive line enclosing the site.

In medieval designs of castle and town, the curtain walls were often built to a considerable height and were fronted by a ditchormoat to make assault difficult. Walls were topped with battlements which consisted of a parapet, which was generally crenellated with merlons to protect the defenders and lower crenels or embrasures which allowed them to shoot from behind cover; merlons were sometimes pierced by loopholes or arrowslits for better protection. Behind the parapet was a wall walk from which the defenders could fight or move from one part of the castle to another. Larger curtain walls were provided with mural passages or galleries built into the thickness of the walls and provided with arrowslits. If an enemy reached the foot of the wall, they became difficult to see or shoot at directly, so some walls were fitted with a projecting wooden platform called a hoarding or brattice. Stone machicolations performed a similar function.^[5]

Early modern fortifications[edit]

The introduction of gunpowder made tall castle walls vulnerable to fire from heavy cannon, which prompted the trace italienne style from the 16th century. In these fortifications, the height of the curtain walls was reduced, and beyond the ditch, additional outworks such as ravelins and tenailles were added to protect the curtain walls from direct cannonading.

See also[edit]

• Bawn
• Enceinte
• Rampart

Notes[edit]

References[edit]

• Curry, Anne; Hughes, Michael, eds. (1999), Arms, Armies and Fortifications in the Hundred Years War (illustrated, reprint, revised ed.), Boydell & Brewer, p. 134, ISBN 9780851157559
• Friar, Stephen (2003), The Sutton Companion to Castles, Stroud: Sutton Publishing, ISBN 978-0-7509-3994-2
• Hull, Lisa (2006). Britain's Medieval Castles. Westport, Connecticut: Praeger Publishers. ISBN 978-0275984144.
• Turnbull, Stephen (2004). The Walls of Constantinople AD 324–1453. Osprey Publishing. ISBN 978-1841767598.
• Whitelaw, A., ed. (1846), The Popular Encyclopedia; or, Conversations Lexicon, vol. I, Glasgow, Edinburgh, and London: Blackie & Son, p. 444

External links[edit]

• Media related to Curtain walls (fortification) at Wikimedia Commons

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