2013 Ynys Môn by-election
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The Ynys Môn seat in the Welsh Assembly. Triggered by vacation of seat by incumbent | |||||||||||||||||||||||||||||||||||||||||||||||
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Map showing the Ynys Môn Assembly constituency within the North Wales electoral region within Wales. | |||||||||||||||||||||||||||||||||||||||||||||||
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A by-election for the Welsh Assembly constituency of Ynys Môn was held on 1 August 2013, The by-election was triggered following the resignation on 20 June 2013 of its sitting Assembly Member, Ieuan Wyn Jones.
The election was the third Assembly by-election to be held since its formation in 1999, and the first for over seven years (the previous contest being at Blaenau Gwent in June 2006).
Prior to the by-election, the governing Labour Party held exactly half the Assembly seats, meaning a gain for that party (who have held the equivalent seat in the House of Commons since 2001) would have given the Welsh government a two-seat majority.