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Keep

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A keep is a large, fortified tower built inside a castle.

Rochester zamek fc11 (cropped)
Rochester zamek fc11 (cropped)

During the Middle Ages, European nobility used these towers for two main reasons. First, the keep served as a grand home for important people. Second, it acted as a refuge of last resort. If an enemy captured the rest of the castle, the people inside would hide in the keep.

Warkworth Castle 2
Warkworth Castle 2

These structures were very important for both military defense and showing off political power.

Early keeps were made of timber and sat on high mounds of earth.

Donjon chateau a motte saint sylvain
Donjon chateau a motte saint sylvain

These mounds were called mottes, and the lower walled area was called a bailey. Builders often used a square structure called a bretasche that hung over the upper floors. This design helped defenders protect the building. To stop fires, people sometimes covered the wooden walls with animal skins and hides.

Trim keep plan
Trim keep plan

Inside, the floors held many different rooms for daily life.

History shows that these towers changed as building styles evolved.

Colchester castle 800
Colchester castle 800

In the 10th century, lords in Anjou built many timber keeps. William the Conqueror brought this style to England in 1066. Later, rulers began building with stone instead of wood. Stone keeps could be square, like Norman keeps, or circular shell keeps.

Restormel Castle keep plan
Restormel Castle keep plan

Building with stone was a very slow and expensive job. It could take ten years to finish a single tower.

Different regions had their own unique ways of building.

Penafiel castle keep rotated
Penafiel castle keep rotated

In France, some keeps had a quatrefoil shape. In England, many towers were built in a polygonal shape. By the 14th century, the keep at Vincennes near Paris started a new trend. These towers had machicolations, which let defenders drop things on enemies below.

Château de Vincennes Paris FRA 002
Château de Vincennes Paris FRA 002

In Germany, people preferred tall fighting towers called bergfriede instead of the western style.

Eventually, new technology changed how castles worked.

Chateau pierrefonds143
Chateau pierrefonds143

In the 15th century, improved artillery made stone walls less safe. For example, bombards, which were early cannons, helped defeat Bamburgh Castle in 1464. By the 16th century, keeps were slowly falling out of fashion. Many were later used as decorations in gardens or restored by architects.

Raglan keep
Raglan keep

Today, these ancient towers are important parts of history and tourism in Europe.

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🖼️ Images & Media (30)
File:Lock-green.svg
Lock-green.svg
File:Scholia logo.svg
Scholia logo.svg
File:Rouen - Tour Jeanne d'Arc 01.jpg
Rouen - Tour Jeanne d'Arc 01.jpg
File:Rochester zamek fc11 (cropped).jpg
Rochester zamek fc11 (cropped).jpg
File:Trim Castle Gesamt.jpg
Trim Castle Gesamt.jpg
File:RestormelCastle.JPG
RestormelCastle.JPG
File:Chateau pierrefonds143.jpg
Chateau pierrefonds143.jpg
File:Château de Vincennes Paris FRA 002.jpg
Château de Vincennes Paris FRA 002.jpg
File:Penafiel-Espana0007.JPG
Penafiel-Espana0007.JPG
File:Warkworth Castle 2.jpg
Warkworth Castle 2.jpg
File:Royal Naval Dockyard Bermuda circa 1899 Ordnance Survey map by Lieutenant Arthur Johnson Savage, RE.jpg
Royal Naval Dockyard Bermuda circa 1899...
File:Colchester castle 800.jpg
Colchester castle 800.jpg

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