List of co-options to the Senedd

This is a list of co-options to the Senedd (Welsh Parliament; Welsh: Senedd Cymru; formerly the National Assembly of Wales before 2020). Until 2026, co-options were used for regional members: per the provisions of the Government of Wales Act, 1998, regional members of the Senedd who resign, die or are otherwise disqualified are replaced by the next available and willing person of their original party's list, and no by-election occurs.

Source: Wikipedia — List of co-options to the Senedd (CC BY-SA 4.0)