Henry Marten (1602 ? 9 September 1680) was an English lawyer and politician who sat in the House of Commons in two periods between 1640 and 1653. He was an ardent republican and a regicide of King Charles I of England.
"The Parish and Priory Church of St Mary:
"Close to the West door under a protective red carpet is the tomb of Henry Marten, close friend of Oliver Cromwell, and signatory to Charles 1?s death warrant. Marten was imprisoned for many years in Chepstow Castle in the tower that still bears his name, until his death in 1680."co.uk