LOCAL Assembly Member Joyce Watson is backing a campaign to posthumously pardon a Welsh miner hanged nearly 200 years ago.

Richard Lewis, better known as Dic Penderyn, was executed for his involvement in the Merthyr Rising of 1831.

He was arrested for stabbing a soldier with a bayonet in a riot. The people of Merthyr Tydfil doubted his guilt with more than 11,000 signing a petition for his release.

Penderyn was found guilty and hanged in Cardiff on August 13, 1831. His case has been cited as a grave miscarriage of justice.

Jane Hall, a descendant of Penderyn who lives in St Dogmaels, appealed to Joyce Watson to support a petition calling on UK Secretary of State for Justice, Michael Gove, to grant a full pardon.

So far, 17 members from the four political parties represented in the Assembly have signed the pledge.

Usually a pardon is only granted if new evidence comes to light which demonstrates conclusively the individual is innocent.