Grosmont Castle



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Grosmont is one of the 'trilateral' castles of Hubert de Burgh (see also Skenfrith and White Castle). It stands on a mound with a dry moat, and the considerable remains of its 13th-century great hall can be seen. Three towers once guarded the curtain wall, and the western one is well preserved. It was begun in 1201 with the building of the rectangular hall, while the gatehouse and round towers were only added in his second reign of ownership, between 1219 and 1232. Grosmont is also associated with Jack O'Kent, a local folk hero. The Devil vowed to take O'Kent, whether he was buried in the church or outside it. For that reason, O'Kent arranged to be buried under the wall of the village church, so that he was neither inside nor out. Photo credit: © Crown copyright (2015) Cadw

Grosmont Castle


Opening times
  • Open all year
  • Opening Times: Open all year, daily 10-4 (last admission 3.30) Closed 24-26 Dec, 1 Jan

About the area

Discover Monmouthshire

In their bid to control the borderlands of Monmouthshire – also known as the Marches – the Normans built a triangle of castles: Grosmont, Skenfrith and White. At first, they were simple wooden structures strengthened by earthworks, but when the lively Welsh refused to stop attacking them, it was decided more permanent fortresses were needed. All three are worth a visit and the views from the battlements at White Castle over the surrounding countryside to the Black Mountains are stunning, as is all the scenery in this area – consisting of a patchwork of low hills, hidden valleys, fields criss-crossed with hedgerows and small belts of woodland. 

Monmouth itself makes a great base to explore the beautiful Wye Valley, as well as being known as the home of Rockfield Studios, where Queen recorded Bohemian Rhapsody in 1975. The largest town in the county, Abergavenny is creating a name for itself as the foodie capital of the Usk Valley, and has held a weekly cattle market on the same site since 1863. Its location just six miles from the English border means it’s often described as the ‘gateway to Wales’.

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