A concentric castle is a castle with two or more concentric curtain walls, such that the outer wall is lower than the inner and can be defended from it.
What was the main goal of the concentric castle?
The basic idea behind the design was simple – concentric castles were a castle within a castle. This greatly increased the defensive capability of the fortification, as attackers would have to breach not one, but two sets of formidable stone walls in order to capture the castle.
What were concentric castles strengths and weaknesses?
Caernarfon Castle even had towers built within its towers, which made them an incredibly strong defence. While considered strong, concentric castles did have two major weaknesses: They were incredibly expensive to build and they made it hard for troops to engage from a safe position.
What was special about the concentric castle?
Concentric castles had two or more surrounding walls around the central tower and were made of stone. The word ‘concentric’ means to ‘have a common center,’ such as a circle within another circle. So a concentric castle was like a castle within a castle. This made it very difficult for invaders to get inside.
Is Dover Castle a concentric castle?
Dover Castle, located in the southern county of Kent, is one of the largest castles in England and one of the first to have concentric defensive walls.
How were concentric castles attacked?
Once inside the outer curtain wall any intruder would be visible to archers or crossbowmen within up to 8 of the towers and along the walls. To successfully capture the castle they would also have to either scale both sets of walls, under fire from each of the towers, or breach the heavily fortified gatehouses.
What are the weaknesses of a concentric castle?
At a glance: the disadvantages of concentric castles
They were phenomenally expensive to build – this can’t be overstated!They took significant time to build – they needed years, rather than just weeks for basic motte-and-bailey castle.
Why do castles have round towers?
Round towers, also called drum towers, are more resistant to siege technology such as sappers and projectiles than square towers. The round front is more resistant than the straight side of a square tower, just as a load-bearing arch. This principle was already understood in antiquity.
Who built concentric castles?
Concentric castles appeared in Europe in the 13th century, with the castles built in Wales by Edward I providing some outstanding examples, in particular Beaumaris Castle, although Beaumaris remains unfinished.
When was Dover Castle built?
King Henry II began to build the present castle in the 1180s, and over the next 800 years its buildings, defences and tunnels were adapted to meet the changing demands of warfare, right into the era of nuclear weapons.
Is the Tower of London a concentric castle?
The Tower of London, located in the centre of the city, is a concentric castle with a Norman Stone Keep. William the Conqueror commenced the building of the castle in 1066 but it was not finally finished, as we know it today, until the 1530’s.
Why did the concentric castles replace the stone keep castles?
These were soon replaced by Stone Keep castles as they offered better protection from attack. Concentric castles developed during the 12th and 13th Centuries and were virtually impossible to conquer. Pevensey castle in East Sussex is an example of a Norman Castle built inside an existing Roman Fort.
What are the advantages of castles?
This had a number of advantages: The height of these towers meant they could be seen by people from miles away, this demonstrated the power of Normans. It also gave look outs and archers excellent defensive positions, these castles were rarely attacked without warning and they were an excellent base to attack from.
What defensive features did castles have?
How to defend a castle
Building up high. Building a castle up high made it difficult for enemies to get to the castle. Tall towers. Strong towers were added to curtain walls to watch out for enemies. Battlements. Battlements were walls on the roof of a castle. Arrow slits. Moat. Drawbridge. Portcullis. Dungeons.
Do concentric castles have keeps?
Concentric Castles can be described as “a Castle within a Castle”. They had two or three walls around the keep. (N.B. some concentric castles didn’t have a keep. Instead, inside the outer wall, there was another wall connecting a series of towers.)
What King lived in Dover Castle?
King Henry II, who built Dover Castle’s great tower, also created the largest European empire of his age, stretching at its height from Scotland to the Pyrenees.
