Plaid Cymru History

  • Celebrating the first Plaid Cymru Meeting

    Friday 12 January 2024 Plaid Cymru met in Penarth to celebrate 100 years since the first meeting to establish the party.

    Leanne Wood, Rosanne Reeves, Richard Wyn Jones, Gareth Clubb

    Here are the contributions of Leanne Wood and Richard Wyn Jones at the start of the meeting.


    Lively Kick-off for Centenary Celebrations

    A series of events marking the foundation of Plaid Cymru nearly a hundred years ago got off to a lively start in Penarth on Friday 12 January 2024 at the Belle Vue Community Centre, Albert Crescent, Penarth. 

    Plaid members and guests took part in an evening to celebrate the formation of a secret group, the Mudiad Cymreig or Welsh movement, one of the organisations whose fusion a year later led to the formal launch of the national party.

    Those present at the meeting  on 7 January ...

    More 13/01/2024
  • Latest Newsletter Published

    Here is the Autumn 2023 Newsletter about the activities of the Society,

    Click here to read >

    More 10/10/2023
  • Legal Aspects of the Penyberth Case

    Thursday 10 August at the Eisteddfod in Boduan, a lecture was given by the barrister, author and academic, Keith Bush, who is a Fellow of Welsh Law at the Wales Governance Centre.

    Legal Aspects of the Penyberth Case

    (Lecture delivered by the author (as “Agweddau Cyfreithiol Achos Penyberth”) on behalf of the Plaid Cymru History Society at the National Eisteddfod, Boduan, August 2023)

    The Penyberth case

    On 19th January 1937, at the Old Bailey in London, Saunders Lewis, Lewis Valentine and D. J. Williams (“the Three”) were found guilty of property damage, contrary to sections 5 and 51 of the Malicious Damage Act 1861. They were sent to jail for 9 months. The basis of the charge was that ...

    More 12/08/2023


    7pm Friday, 12th January 2024

    Belle Vue Community Centre, Albert Crescent, Penarth, CF64 1BY

    Entrance fee: £10 (concessions available)

    Host:  Heledd Fychan,  Senedd Member (South Wales Central)

    And in conversation:

    Leanne Wood, Plaid Cymru Leader 2012-18

    Richard Wyn Jones, Director, Welsh Governance Centre

    Come and celebrate the centenary of this historic meeting: 

    In January 1924, four Welsh nationalists met at 9 Bedwas Place, Penarth, and recorded their decision to create “Plaid Genedlaethol Cymru”: the National Party of Wales. A year later this led to the public launch of the new party at the 1925 National Eisteddfod in Pwllheli. Those present at the meeting in Bedwas Place were Ambrose Bebb, Griffith John Williams, Elizabeth Williams and Saunders Lewis, the great poet  and playwright and future leader of the party, who subsequently lived in Penarth from 1952 until his death in 1985.

    Heledd will invite Leanne and Richard to discuss ...

    More 07/12/2023
  • Penyberth – New Research on Old Bailey Switch

    New research reveals that the controversial transfer of the Penyberth Bombing School trial from Wales to London was engineered by a local police chief rather than the Westminster government.

    Three of the Plaid Cymru’s leading members, Saunders Lewis, Lewis Valentine and DJ Williams were imprisoned following the burning of the bombing school under construction at Penyberth near Pwllheli in September 1936.

    The move of the trial to the Old Bailey came after a jury in Caernarfon had failed to find the Three guilty of committing the damage and caused a major furore in Wales.  Former Prime Minster David Lloyd George was one of many who blamed the government of the day – “They crumple when tackled by Mussolini and Hitler, but they take it out on the smallest country in the realm,” he said, “This is the First Government that has tried Wales at the Old Bailey.”

    Now freshly published research by ...

    More 25/08/2023
  • Brian Arnold (1941-2023)

    Writing a posthumous appreciation of Brian Arnold and his contribution to the stability and success of Plaid Cymru in Pontypridd, the Cynon Valley (to which Ynysybwl belonged administratively) and the valleys of mid-Glamorgan is an unsought privilege.

    It is a privilege because he was such a steadfast and upstanding character in personal and political terms and, because, over a period of sixty years or so, it was an honour to have counted him a good friend. It is unsought for the same reasons.

    It has been said in other tributes to Brian (by Heledd Fychan A.S. on-line and David Walters in Clochdar, April, 2023, pp.14-15) that his inspiration for joining Plaid Cymru in 1957, at the age of 16, was Gwynfor Evans’ leadership of the Party and the latter’s statement that Wales was a nation in ...

    More 26/07/2023