Castle

A Castle can be either a large stone building used as a fortified base or an elaborate building occupied by nobility (though the latter is most often called a palace).

Glossary of related terms

• motte (as in motte-and bailey) -- an artificial (very occasionally a natural) mound upon which early Norman keeps were set. A means to gain height without requring a bvroad base or a serious risk of structural instability.
• bailey (as in motte-and bailey) -- the bit below the motte, usually flat(tish), wehere the rest of the castle's buildings went; usually surrounded by a wall. Later on it became used for open portions within a castle, and then often came in 'inner', 'middle' and 'outer' flavours as appropriate. Also known on occasions as a ward.
• keep -- big tower, usually the principal tower in the castle. In a simple castle, this would be where the main rooms would be. Later the comfortable bits moved into tailor-made structures, and the keep became something like the conning-tower of the castle.
• gatehouse -- a defensive structure over and round a gateway into and out of the walled area. In some castles the major defensive work, which subsumed into itself the function of the keep.
• towers -- hands up those who need explanation here
• turret -- a small tower, sometimes one perched at the top of the wall that doesn't reach the ground (think D*sn*y). Nothing to do with being unable to control your speech pattern.
• barbican -- a defensive work built out from the main castle. Often an advance gateway, with its own gatehouse, and walls, restricting the width of access to the main gate.
• moat -- large ditch, sometimes filled with water, surrounding a castle. In some cases this connects to a nearby river or to the sea, providing an access and escape route. Otherwise its main feature is that it stops it being so easy to get to the walls, or to dig under them. A dry moat can also be called a foss.
• drawbridge -- To get over a moat or foss you need a bridge: a drawbridge is hinged at the castle side, and can be raised or lowered from inside, thus completing the moat's circuit without boxing everybody in; but letting the inhabitants box everyone else out.
• battlement -- the up and down bits on top of a wall -- the ups are merlons, the holes between crenels (hence the alternate term crenellation)
• postern -- a small gateway, often used by the defenders to rush out at attackers to surprise them. Hence it is also known as a sally port: a port or gate from which you make a sally.