Due to concerns over the further spread of Coronavirus and the well-being of our visitors, we regret to report that all Cadw unstaffed monuments and car parks will be closed from 5pm Monday 23 March until further notice. We do look forward to inviting people to once again enjoy these outstanding monuments as soon as we are able.
Ruined castle with a regal history
It’s a surprise to find this ruin, tucked away as it is in a lane off Monmouth’s main shopping street. Strategically located at crossings of the River Wye and River Monnow, only a few fragments – ruins of the 12th-century Great Tower and 13th-century hall – remain of this once-important castle. It was founded in the 11th century by Norman lord William fitz Osbern, and by the mid-14th century was in the hands of Henry of Grosmont, who modified the tower with large decorated windows whose outline can still be seen in the east wall.
The most notable event in the tower’s history occurred on 16 September 1387, when King Henry V of Battle of Agincourt fame was born here, an occasion commemorated at Monmouth’s Agincourt Square.