The shape, size and purpose of the medieval castle changed over time. This page describes the changes that took place.
To avoid being attacked either by fellow humans or wild animals and without the luxury of a stone castle the best defence for Iron Age people was to live somewhere that was difficult for those attackers to get at. This is how primitive people planned their defences. By living somewhere from which they could see attackers coming and somewhere they could easily defend early humans were able to survive.
The Normans built these castles around England and on the borders of Wales to keep the local inhabitants under their control. Examples of existing castles that started as Motte and Baileys include Warwick and Windsor.
Although square keeps were still being built, it became clear that the old design had several problems: -
A concentric castle consists of an inner ward surrounded by one or more outer walls. If an attacker manages to get past one wall there is still one or more set of walls to get past to get to the centre. An attacker could get trapped between walls and be an easy target for the defenders. The first true concentric castle in Britain was Caerphilly Castle in Wales ordered by Henry III.
Edward I built a series of castles in North Wales along the coast where they could be resupplied by sea. They allowed Edward to conquer Llewelyn ap Gruffyfdd, the Prince of Wales. Each castle had a small town attached to it protected by a enclosing wall.
In these two centuries fewer new castles were built. The King and Barons concentrated on improving the castles they had, making them larger and more comfortable to live in. Those that were built were designed first for luxury and to impress rather than for defence.
If you are using Chrome, Firefox or Microsoft Edge for Windows 10 (tested on version 25.10586.0.0) explore a virtual Stokesay Castle.
Stokesay Castle is an excellent example of a fortified manor house. It has remained largely unchanged since the time it was built in the thirteenth century by Lawrence of Ludlow. Lawrence was a wealthy wool trader who built a new hall and tower on the site of an existing fortification. Explore the hall and solar block that he created.
As you start moving you will pe prompted to hide the cursor. This is recommended for best results when exploring the reconstruction. Press 'L' to go full screen and press 'Shift' to run.
The requirement to live in castles in England had passed because the barons and nobles were no longer fighting amongst themselves. But the threat of invasion from France was very real. In the reign of Henry VIII the threat became so great that the King ordered the construction of several new castles along the south coast of England. These are known as the gun-forts of Henry VIII.
Examples: Deal, Walmer, Pendennis, St. Mawes