Female Members of Parliament
This list identifies all the women who have ever been elected to the House of Commons. They are reported by election, then in the order in which they were sworn in.
Documents to download
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MPs' changes of party allegiance in the House of Commons since 1979 (110 KB , Excel Spreadsheet)
Is there a by-election if an MP changes Party?
No, by-elections are not automatically triggered if an MP changes his or her party affiliation although an MP may choose to stand down and fight the ensuing by-election under a new party label or as an independent Member.
Role of the Whips Office
Information on the role of the Government and Opposition whips in the management of parliamentary business can be found in the Commons Library briefing on the Whips’ Office.
Parliament: facts and figures
This series of publications contains data on various subjects relating to Parliament and Government. Topics include legislation, MPs, select committees, debates, divisions and Parliamentary procedure.
Feedback
Due to the difficulties in compiling a comprehensive list of all floor-crossings, whip withdrawals and whip resignations, this list cannot be guaranteed to be definitive.
We are always happy to hear of any additions or amendments to the list. Please email papers@parliament.uk with any comments.
We also welcome suggestions for new lists.
Documents to download
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MPs' changes of party allegiance in the House of Commons since 1979 (110 KB , Excel Spreadsheet)
Related posts
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The Parliamentary Ombudsman: role and proposals for reform
This paper looks at the role of the Parliamentary Ombudsman, and recent proposals for its reform.
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Risk-based exclusion of MPs
A scheme to exclude MPs under investigation for sexual misconduct has been implemented in standing orders.