Colchester Castle

Colchester Castle was built by William the Conqueror around 1069 on the foundations of the Roman Temple of Claudius. It contains the largest surviving Norman keep in England, even larger in footprint than the Tower of London's White Tower. The reuse of Roman brick and tile gives the keep its distinctive reddish appearance.

Why it mattered

• Largest Norman keep in England by floor area
• Built over the Roman Temple of Claudius
• Key fortress securing East Anglia after the Conquest

Architecture and the site

• Massive rectangular keep with Roman-material walls
• Apsidal chapel projection
• Surrounding bailey and later town defenses

Chronology (selected)

• 1069: Construction begins under William the Conqueror
• 1076: Keep largely complete; used to suppress East Anglian revolts
• 1216: Besieged during the First Barons' War

Further reading

• Philip Crummy, "City of Victory: The Story of Colchester" (1997)

Hub essays

• Region context: norman england conquest and governance and the shared bibliography.
• Castles and fortification: Norman castles — motte to stone.

On the map

Use Open on map to fly to this pin in the Norman expansion era. Layers are teaching overlays — pair them with charters, excavation reports, and the works above.