Calleva Atrebatum

Calleva Atrebatum was an Iron Age oppidum, the capital of the Atrebates tribe. It then became a walled town in the Roman province of Britannia, at a major crossroads of the roads of southern Britain.

The modern village of Silchester in Hampshire, England, is about a mile to the west of the site. The village's parish church of St Mary the Virgin is just within the ancient walls. Most of the site lies within the modern civil parish of Silchester, although the amphitheatre is in the adjoining civil parish of Mortimer West End. The whole of the site is within the local authority district of Basingstoke and Deane and the county of Hampshire.