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Visitor Notice

As of Monday 14 December all staffed and unstaffed monuments will be closed until further notice.

This is following the announcement of the closure of all outdoor attractions in Wales.

For further information on the Welsh Government’s written statement: Updated Covid-19 control plan for Wales, please visit: gov.wales/written-statement-updated-covid-control-plan-wales

Until we can welcome you back in person, why not explore our 3D world of Cadw sites ...

Explore virtual Cadw sites

Overview

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.


Prices

Category Price
Admission
Free

Facilities

No drones icon No smoking icon

Directions

Road
Monmouth town centre