A Roman site fortified by the Normans with a wooden motte and bailey in 1091 and then in stone
at the end of the 12th century. The castle was in poor condition for much of the 15th, 16th & 17th centuries having been captured a number of times from the Welsh uprising in 1404 to the Civil War in the 1640's (twice). The 12 sided shell-keep which is 80 foot in diameter is well preserved and the moat has ben restored. The "new"
castle, a Victorian building, was erected beside it in 1872.