Unionist Party Members of Parliament

This is a record of all Unionist Party Members of Parliament.

Eighteen (18) individuals have served as a Unionist Member of Parliament: six of them have been Prime Minister of Great Britain, and three have been Speaker of the House of Commons, while members of the party. August Carew is the member with the most sessions representing the party, being present in ten sessions, while Thomas Carew served the longest by total days. Three women have served as Unionist MPs: Anastasia Nelson, Madeline Somerset, and Josephine Somerset Carew. Regarding the latter, she has represented more constituencies than any other Unionist MP.

Members of Parliament

Thomas Carew

Co-Founder of the Unionist Party and longest-serving Unionist Prime Minister and Party Chair. Longest serving Unionist MP by days.

Session	Member	Constituency	Party Office
032	Thomas Carew	East Devon	1st Leader of the Party
033
034
035			3rd Chair of the Party
036
039			6th Leader of the Party
040
041
042			6th Chair of the Party

Josephine Somerset Carew

Co-Founder of the Unionist Party, who has served as Leader more times than any other individual. Somerset Carew has represented more constituencies than any other Unionist Member.

Session	Member	Constituency	Party Office
032	Josephine Carew-Grey	Queen's Park and Maida Vale	1st Chair of the Party
033		Tavistock	2nd Leader of the Party
037	Josephine Carew	East Devon
038			5th Leader of the Party
040		Queen's Park and Maida Vale
041	Josephine Somerset Carew	Windsor and Maidenhead
042			8th Leader of the Party
043			8th Chair of the Party
044

Owain Carew-Grey

Also served as Chief Whip of HM Government while in the House of Lords. Notable for his long-tenure as Foreign Secretary.

Session	Member	Constituency	Party Office
032	Owain Carew-Grey	Argyll and Bute

Frederick Urquhart

Later noted for becoming Speaker of the House of Commons twice, though not while a member of the Unionists.

Session	Member	Constituency	Party Office
032	Frederick Urquhart	New Forest East

Patrick Maniar-Wright

Former Defence Secretary.

Session	Member	Constituency	Party Office
032	Patrick Maniar-Wright	Belfast North
033

August Carew

Former Leader of the Unionist Party, who holds the record for most sessions in the Commons as a member of the Party. Noted for his exceptional tenures as Foreign Secretary.

Session	Member	Constituency	Party Office
032	August Carew-Grey	County Clare
033			2nd Chair of the Party
034
035			4th Leader of the Party
036	August Carew
037
038			2nd Chief Whip of the Party
041
042			9th Leader of the Party
043

James Foryste

Ran as a Unionist-backed Independent in the 32nd Session of Parliament. Former Leader of the Unionist Party.

Session	Member	Constituency	Party Office
033	James Forsyte	York Central	3rd Leader of the Party
034

Noa De Carteret

Former Secretary of State for Culture, Media, and Sport.

Session	Member	Constituency	Party Office
033	Noa de Carteret	St Albans-Welwyn-Hatfield

Christian Carleton

Session	Member	Constituency	Party Office
033	Christian Carleton	Aylesbury

Matthew Somerset

Chief of Staff, Special Adviser, and former Chancellor of the Exchequer.

Session	Member	Constituency	Party Office
036	Matthew Somerset	Glasgow Central

Henry Somerset

A former Speaker of the House of Commons.

Session	Member	Constituency	Party Office
037	Henry Somerset	South Cambridgeshire

Anastasia Nelson

Former Chair of the Party. Her membership was formally revoked on 26 December 2025, and she was barred from the Party. She is the only individual to have ever been ejected from the party. As such, her name does not appear on any roll of honour within Party HQ.

Session	Member	Constituency	Party Office
037	Anastasia Nelson	South Norfolk
038			4th Chair of the Party
041		Canterbury
043		South Norfolk

Llywellyn Carew

Former Leader of the Party.

Session	Member	Constituency	Party Office
039	Llywellyn Carew	Preseli Pembrokeshire
040
041			7th Leader of the Party
043			7th Chair of the Party

Albus Carew

Former Speaker of the House of Commons, though not while a Member. Shortest ever tenure as a Unionist MP, at just 4 days.

Session	Member	Constituency	Party Office
041	Albus Carew	Notre Dame de Grâce Westmount

Madeline Somerset

Distinguished Home Secretary and First Secretary of State. Leader-Elect, though she never took on the office of Leader: the only individual to be elected but never take on the role.

Session	Member	Constituency	Party Office
041	Madeline Somerset	Northland
042

Ruben Carew

Downing Street Chief of Staff and the last Chief Whip of the Party. Resigned following internal disputes.

Session	Member	Constituency	Party Office
043	Ruben Carew	Bath	3rd Chief Whip of the Party

Philip Somerset

Current Leader of the Unionist Party.

Session	Member	Constituency	Party Office
043	Philip Somerset	Cities of London and Westminster
044			10th Leader of the Party

Robert Wessex

Session	Member	Constituency	Party Office
044	Robert Wessex	Birmingham Ladywood