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Chepstow Castle is a Norman fortress founded by William FitzOsbern in 1067, shortly after the Norman Conquest, commanding the crossing of the River Wye between England and Wales. The castle is dominated by its great rectangular keep, the Great Tower, which represents one of the finest examples of late eleventh-century military architecture in Britain, with substantial stone walls rising from a rock outcrop above the river. The castle underwent significant expansion and modification during the twelfth and thirteenth centuries, with the addition of multiple baileys and curtain walls that extended its defences across the headland. Chepstow remained strategically important throughout the medieval period as a key stronghold controlling access into Wales, and its substantial surviving masonry, including sections of the curtain wall and multiple towers, demonstrates the sustained military investment in the site across several centuries.
Chepstow Castle is a scheduled monument protected by Cadw under reference MM003. View the official record →
Chepstow Castle is a Norman fortress founded by William FitzOsbern in 1067, shortly after the Norman Conquest, commanding the crossing of the River Wye between England and Wales. It is designated a Scheduled Ancient Monument by Cadw under reference MM003.
Chepstow Castle dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across the UK.
Chepstow Castle is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is MM003.
Several scheduled monuments lie within 10 km, including Crick Moated Site (5.8 km), Crick Medieval House (5.8 km), Heston Brake Long Barrow (6.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Chepstow Castle's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Chepstow Castle stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.