One of the ‘Three Castles of Gwent’ (along with Grosmont and White Castle) founded by Norman lord William fitz Osbern in the early 12th century, the remains of Skenfrith we see today are of a later fortress constructed in the 13th century by Hubert de Burgh. The castle’s well-preserved walls surround a circular keep, similar to those seen at Bronllys and Tretower. Built on an earthen mound, this sturdy structure was a last line of defence should the castle fall under attack.
Between them, the Three Castles controlled a large area of confrontational border country between the River Wye and the Black Mountains, with Skenfrith occupying a strategic spot on the banks of the River Monnow overlooking one of the main routes between Wales and England.