Grosmont Castle - Castell y Grysmwnt. The remains of a gatehouse, curtain wall and hall can be seen of this thirteenth century sandstone castle built on the site a previous one. The castle is protected by a wide moat. It is located at Grosmont, Monmouthshire, Wales (Welsh: Y Grysmwnt or Rhosllwyn, Sir Fynmy, Cymru) off the B4347 road northwest of Monmouth (Welsh: Trefynwy).
Link: Cadw - Grosmont Castle
Image: Grosmont Castle - Castell y Grysmwnt