This is a list of by-elections to the Senedd (Welsh Parliament; Welsh : Senedd Cymru; formerly known as the National Assembly for Wales).
Assembly term | By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained at next election | ||
---|---|---|---|---|---|---|---|---|---|---|
2016–2021 | Alyn and Deeside | 6 February 2018 | Carl Sargeant | Labour | Jack Sargeant | Labour | Death (suicide) [1] | Yes | ||
2011–2016 | Ynys Môn | 1 August 2013 | Ieuan Wyn Jones | Plaid Cymru | Rhun ap Iorwerth | Plaid Cymru | Resignation to lead the Menai Science Park | Yes | ||
2003–2007 | Blaenau Gwent | 29 June 2006 | Peter Law * | Labour | Trish Law | Independent | Death (brain tumour) | Yes | ||
1999–2003 | Swansea East | 27 September 2001 | Val Feld | Labour | Valerie Lloyd | Labour | Death (cancer) | Yes |
*Peter Law left the Labour Party and sat as an independent prior to his death. The by-election was won by his widow, but is classed as an independent gain from Labour.
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