Please click here for more information. Grosmont Castle The Castle, Abergavenny, Monmouthshire Substantial remains of 13th-century castle of Hubert de Burgh, raised on an earlier motte. It was later remodelled by the house of Lancaster.   Accommodation and Events There's a good choice of quality assured accommodation and often events in the area covered by the map below. About our location: Grosmont, on B4347, 10m NW of Monmouth, 9m NE of Abergavenny     Reset Map Position Admission Special offer Adult price Free Child price Free Family price Free Concessions Free Opening Hours: Access is available at all reasonable times. This will normally be between 10:00 and 16:00 daily.     Grosmont Castle The Castle, Abergavenny, Monmouthshire  Telephone 01981 240301 Website	Accommodation Beaches Events Restaurants Click on the channels above to get information on areas covered by the zoomable maps.