| Monmouth Castle | |
|---|---|
Welsh: Castell Trefynwy | |
| Monmouth in Wales, United Kingdom | |
 Ruins of the castle | |
  Monmouth Castle  Monmouth Castle  Monmouth Castle | |
| Coordinates | 51°48′45″N 2°43′00″W / 51.8125°N 2.7167°W |
| Grid reference | SO506128 |
| Type | Fortified castle |
| Site information | |
| Owner | British Army |
| Operator | British Army Reserve |
| Controlled by | Royal Monmouthshire Royal Engineers |
| Open to the public | Yes |
| Condition | Ruin |
| Website | Official website |
| Site history | |
| Built | 1067 |
| Built by | William FitzOsbern, 1st Earl of Hereford |
| Fate | Slighted (ordered demolished) |
| Demolished | 30 March 1647 |
| Events | English Civil War |
| Designations | |
Listed Building – Grade I | |
| Official name | Monmouth Castle |
| Type | Defence |
| Designated | 15 August 1974 |
| Reference no. | 2216 |
| Designation information via Cadw[1] | |
Monmouth Castle (Welsh: Castell Trefynwy) is a castle close to the centre of the town of Monmouth, the county town of Monmouthshire, on a hill above the River Monnow in south-east Wales.
Once an important border castle, and birthplace of Henry V of England, it stood until the English Civil War when it was damaged and changed hands three times before being slighted to prevent it being fortified again. After partial collapse in 1647, the site was reused and built over by Great Castle House, which became the headquarters and regimental museum of the Royal Monmouthshire Royal Engineers.
It is a Grade I listed building and scheduled monument.
- ^ "Monmouth Castle". HeritageBill Cadw Assets. Cadw. Retrieved 16 May 2024.