Grosmont Castle
Big on the border
Grosmont is a member of an illustrious trio of strongholds. Along with Skenfrith and White Castle, it’s one of the ‘Three Castles of Gwent’ built by the Normans to control a key section of troublesome border country. The original earth-and-timber stronghold, build on a gros mont (French for ‘big hill’), was later replaced in stone.
It experienced an active life. Thirteenth-century reconstruction included the gatehouse and circular towers. Remodelling a century later gave Grosmont apartments fit for a noble household, but by the 15th century the castle was in the wars again, besieged in the rebellion led by charismatic Welsh leader Owain Glyndŵr.
Opening times & prices
Opening times
1st April - 31st March | 10am–4pm |
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Last admission 30 minutes before closing Closed 24, 25, 26 December and 1 January |
Visitor information
Dogs welcome
Dogs on short leads welcome to access ground floor levels of the site.
Drone policy
Please read our policy information about flying drones at Cadw monuments: read the guidance
No smoking
Smoking is not permitted.
Directions
Google MapPostcode NP7 8EP
For further information, please contact: Traveline Cymru on 0800 464 0000 or National Rail Enquiries on 03457 48 49 50.
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