"CHEPSTOW, a parish, seaport, and market town, in the upper division of the hundred of Caldicott, in the county of Monmouth. It is situated in a beautiful spot on the right bank of the river Wye, 135 miles by road and 141½ by the Great Western and South Wales railways from London. Anciently the town was strongly fortified, and the fine ruins of its Norman castle, Castellum de Estrighoiel, or Striguil, of Domesday, are still in existence, and partially occupied. This castle is said to have been built about the time of the Conquest by W. Fitz-Osborne, Earl of Hereford; the Duke of Beaufort, who takes the title of Baron Herbert from it, inherits it through the Clares and Plantagenets."
[Description(s) from The National Gazetteer of Great Britain and Ireland (1868)