round keep castle.
CONCENTRIC
square stone keep castle
1st. motte and bailey castle 2nd. square keep castle 3rd. shell keep castle 4th. concentric castle
When gunpowder and cannons were invented, castles where more used for homes and less for defence.
A Square Keep castle usually sits on a hill. It only has 1 wall of defence, whereas a concentric castle usually has about 3 thick walls. Concentric's also have a keep in the middle that has a wall 2.5 metres thick!
The defences of a concentric castle were round towers - It was harder for attackers to make round towers collapse. Unlike square towers they had no corners, which collapsed if holes were dug underneath the foundations.
The strengths and advantages of concentric castles were numerous!What were the Weaknesses and Disadvantages of Concentric Castles?The weaknesses and disadvantages of concentric castles were as follows:Concentric Castles were extremely expensive to buildThe loss of a Concentric castle would have been disastrous for the ownerThey required vast man power and labour resourcesA huge variety of skills were required to build Concentric castlesA Concentric Castle could take several years to completeSiege Warfare was applied when trying to take a concentric castle - Castle walls could fall due to bombardment from Siege Engines such as the ballista, the mangonel, and the trebuchetThe Welsh Castles of Edward I were built with direct access to the sea fresh supplies could be delivered to the castle and the defenders could not be starved into submissionConcentric Castles built inland ran the risk of being starved into submission
a round keep castle has round corners so it is harder for it to be undermined A concentric castle is basically square
No, Warwick Castle never became a concentric castle. Warwick Castle, located in the county town of Warwick in Warwickshire is in a location that isn't geographically prone to attack and therefore wasn't altered. Concentric castles were very expensive to build and would only be found in strategic locations. Warwick Castle is not near the coast of England or border with Wales. The process of updating it was delayed. After a Motte and Bailey it was, in 1260 compared with more stategical castles that were updated around 1100, turned into stone. Many castles gained the characteristic of a square (stone) keep but Warwick Castle gained a shell keep.
in england
profiles that are square and rectangular
Concentric castles were the next follow on from stone keep castles. Concentric castles, in Britain, are most associated with Edward I and North-West Wales where a series of huge castles were built. The most famous concentric castles are at Harlech, Beaumaris, Caernarvon and Conway. Unlike square keep castles, concentric castles had no central keep. In many senses, they had no centre either as all parts of the castle would have been considered to be a strong point. Each concentric castle had a very heavily defended entrance and the central core was defended by a series of curtain walls. The furthest of the curtain walls would have been the smallest in height to allow the defenders to see an approaching enemy. The curtain wall nearest to the castle would have been the highest to give the defenders the maximum height advantage over those attempting to take over the castle. JAJAJA