Here’s what I can share based on current available information.
- John Jones Maesygarnedd (c. 1597–1660) was a Welsh military leader and politician who signed the death warrant of King Charles I and was later executed after the Restoration. This identifies him as a regicide and a notable Parliamentarian figure from Wales.[2][3]
- He is historically linked to Merionethshire (Maesygarnedd refers to his estate there) and was a brother-in-law to Oliver Cromwell, highlighting his prominent connections within the Commonwealth leadership.[2]
- Contemporary summaries note that after Charles II’s restoration he was tried and hanged, drawn, and quartered at Charing Cross in 1660. This underscores the fate faced by regicides following the monarchy’s return.[2]
If you’d like, I can search for the latest scholarship or Welsh-language sources that shed new light on his life, or pull up a concise timeline of his key actions during the Civil War and Interregnum. Would you like me to do that?
Citations:
- John Jones Maesygarnedd overview and regicide role.[2]
- Related biographical summaries and death details.[3]
- General references and additional kid-friendly summaries.[3]