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Watch: How castles developed and why they were built.

Find out more about how castles developed and why they were built

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Early castles

A cartoon castle with its gate open. A knight on a horse with a flag stands in front of the castle.
  • In 1066 England was invaded by Duke William the Conqueror and the Normans.

  • There were only around 10,000 Normans out of two million people in England.

  • Duke William built castles to keep control. Not many people in England at that time knew much about castles.

  • Hundreds of castles were built all across Britain in towns and river crossings.

  • At first castles were made from wood but the main ones were built of stone. Some of them are still famous today.

A cartoon castle with its gate open. A knight on a horse with a flag stands in front of the castle.
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How were castles built?

A cartoon of a motte and bailey castle. There is a timber wood tower on a mound surrounded by a wall and a ring of water at the bottom.
Image caption,
A motte and bailey castle.
  • The earliest castles were called 'motte and bailey’ castles. They were built on a mound called the motte, with an outer stockade called the bailey.

  • Stone castles had a ‘k±đ±đ±è’ or main tower, with an outer gate called a barbican.

  • William the Conqueror built the Tower of London, one of the most famous stone castles.

Students queue outside the Tower of London.
Image caption,
The Tower of London. The White Tower in the centre was built by William the Conquerer in 1078.
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Sieges

A trebuchet. It is a wooden structure on four wheels with a catapult on top.
Image caption,
A trebuchet.
  • Castles had to be captured by siege. This means by attacking, surrounding and isolating them.

  • Powerful lords sometimes rebelled against the King and used their castles as bases.

  • Siege weapons included giant catapults called trebuchets, cannon, battering rams, and siege towers.

  • Sieges could last weeks or even months.

  • During the siege of Stirling Castle, King Edward I of England ordered the world's biggest ever trebuchet to be built. It was called the Warwolf.

A trebuchet. It is a wooden structure on four wheels with a catapult on top.
Image caption,
A trebuchet.
Stirling Castle, Scotland
Image caption,
Stirling Castle, Scotland
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Famous castles

Harlech Castle, Gwynedd, Wales which stands on a crag protected by the sea on one side and a moat on the other
Image caption,
Harlech Castle in Gwynedd, Wales which was built by Edward I stands on a crag protected by the sea on one side and a moat on the other.
  • Edward I conquered Wales and built the largest castles in Britain at Harlech, Conwy and Caernarfon.

  • Dover Castle is on the site of a Roman lighthouse (a Pharos) and remained a military base until the 1960s.

  • The 1266 siege of Kenilworth Castle in Warwickshire lasted six months.

  • The Tower of London has been used as a palace and a prison. Elizabeth I was held there when she was a young princess. Guy Fawkes was a prisoner in the tower after he tried to blow up the Houses of Parliament.

Harlech Castle, Gwynedd, Wales which stands on a crag protected by the sea on one side and a moat on the other
Image caption,
Harlech Castle in Gwynedd, Wales which was built by Edward I stands on a crag protected by the sea on one side and a moat on the other.
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Did you know?

  • Hundreds of people lived in the larger castles, not just soldiers.
  • There were families and children.
  • People that lived in the castle grounds had different jobs such as: blacksmiths who made things with metal, farmers and tradesmen.
  • During the Tudor era Henry VIII used Conwy Castle as a prison and a guest house!
Conwy Castle in Wales built by Edward I between 1283 - 1289.
Image caption,
Conwy Castle in Wales built by Edward I between 1283 - 1289.
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Activity: Castles quiz

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