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The Senedd’s speaker has formally declared the Caerphilly constituency seat vacant following the sudden death of Labour Senedd Member Hefin David last week.

Elin Jones, the speaker or Llywydd, issued a statement declaring the seat vacant from August 12 in line with the Government of Wales Act 2006 and the Senedd’s rules.

The speaker is now required to set a date for a by-election which will be confirmed following discussions with the constituency’s returning officer.

A by-election must be held within three months of the vacancy occurring which would make Tuesday, November 11 the last possible date.

By-elections will become a thing of the past from May 2026 when the Senedd expands to 96 members and adopts a fully proportional electoral system.

Senedd members are expected to hold a tribute session to Dr David at the start of the next term in mid-September following the summer recess.

A book of condolence is available in the Neuadd, the hall at the front of the Senedd building, for anyone who would like to add a message.