Monmouth Castle - Castell Trefynwy was originally built in the mid eleventh century the remains seen today are mainly the twelfth century tower, thirteenth century great hall and parts of the castle walls. It is located in the town of Monmouth, Monmouthshire, Wales (Welsh: Trefynwy, Sir Fynwy, Cymru) off the A40 road.
Link: Cadw - Monmouth Castle
Image: Monmouth Castle, Church, &c : Bridge over the Wye at Monmouth - 1800. Welsh Landscape Collection. Publisher T Cadell Jun And W Davies Strand London.