English: Surviving section of the medieval town wall of Chepstow, Monmouthshire, Wales. A nearby plaque reads: "The wall that defended the mediaval town of Chepstow has been called the Portwall for many years. It was apparently planned and built as a whole by order of Roger Bigod, fifth Earl of Norfolk, during the period 1272-1278. About two-thirds of the original length of 1123 metres still survives. . . . The wall now appears smaller as the ground level has risen by about 2m, there was also a defensive ditch in front of the wall."