Reginald Ernest Prentice, Baron Prentice, PC (16 July 1923 – 18 January 2001)^[1] was a British politician who held ministerial office in both Labour and Conservative Party governments. He was the most senior Labour figure ever to defect to the Conservative Party.

Quick Facts The Right HonourableThe Lord PrenticePC, Frontbench portfolios 1964–1981 ...

The Right Honourable The Lord Prentice PC
1963
Frontbench portfolios 1964–1981 Minister of State for Social Security In office 7 May 1979 – 5 January 1981 Prime Minister Margaret Thatcher Preceded by Alf Morris Succeeded by Hugh Rossi Minister of State for Overseas Development In office 10 June 1975 – 21 December 1976 Prime Minister Harold Wilson James Callaghan Preceded by Judith Hart Succeeded by Frank Judd In office 29 August 1967 – 6 October 1969 Prime Minister Harold Wilson Preceded by Arthur Bottomley Succeeded by Judith Hart Secretary of State for Education and Science In office 5 March 1974 – 10 June 1975 Prime Minister Harold Wilson Preceded by Margaret Thatcher Succeeded by Fred Mulley Shadow Secretary of State for Employment In office 19 April 1972 – 5 March 1974 Leader Harold Wilson Preceded by James Callaghan Succeeded by William Whitelaw Minister of State for Public Buildings and Works In office 6 April 1966 – 29 August 1967 Prime Minister Harold Wilson Preceded by Charles Pannell Succeeded by Bob Mellish Minister of State for Education and Science In office 20 October 1964 – 6 April 1966 Prime Minister Harold Wilson Preceded by Peter Legh Succeeded by Goronwy Roberts
Member of Parliament for Daventry
In office 3 May 1979 – 18 May 1987
Preceded by	Arthur Jones
Succeeded by	Tim Boswell
Member of Parliament for Newham North East East Ham North (1957–1974)
In office 31 May 1957 – 7 April 1979
Preceded by	Percy Daines
Succeeded by	Ron Leighton
Personal details
Born	Reginald Ernest Prentice (1923-07-16)16 July 1923 Croydon
Died	18 January 2001(2001-01-18) (aged 77) Mildenhall, Wiltshire
Political party	Conservative (1977–2001)
Other political affiliations	Labour (before 1977)
Alma mater	London School of Economics

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Reg Prentice was born in Croydon, Surrey, and educated at Whitgift School in South Croydon, then at the London School of Economics. He served in Austria and Italy during World War II.

Prentice joined the staff of the Transport and General Workers Union (TGWU) in 1950.

He was a councillor for Whitehorse Manor in the then-County Borough of Croydon from 1949, having stood unsuccessfully in Thornton Heath ward in 1947. He served on the Housing, Libraries, Planning & Development, Water and Reconstruction Committees.

He first stood, unsuccessfully, for parliament in Croydon North in 1950 and 1951, then Streatham in 1955. As Labour Member of Parliament from 1957 for East Ham North, later Newham North East, he was a minister of state in Harold Wilson's first government at Education and Science (1964–66), then as Minister of Public Buildings and Works (1966–67), and finally was put in charge of the still-new Ministry of Overseas Development (1967–69).

In the 1971 Shadow Cabinet election, Prentice just missed out on being elected, finishing in 13th place in the ballot for 12 available places. However in April 1972 the resignations from the shadow cabinet of Harold Lever and George Thomson saw Prentice and 14th placed candidate John Silkin join the body in their place. At the next shadow cabinet election, Prentice topped the poll and he was again re-elected in 1973, this time finishing in third place.^[2]

When Labour regained power, he was Secretary of State for Education and Science between 1974 and 1975, subsequently becoming Minister for Overseas Development with a seat in the cabinet until 1976.

In 1975, after his Constituency Labour Party had been infiltrated by Trotskyist Militants, he was deselected.^[3][4] He appealed unsuccessfully from the rostrum of the Labour Party Conference for the National Executive Committee to overturn their endorsement of his deselection.^[3]

In 1977, Prentice left the Labour Party after a series of battles with left-wing constituency activists^[3] and joined the Conservative Party.

He was elected as a Conservative Member of Parliament for Daventry in the 1979 general election. Lady Hesketh was instrumental in him standing for Daventry.^[5] He was a Minister of State at the Department of Health and Social Security in Margaret Thatcher's government between 1979 and 1981. He left the government owing to ill health.^[3] He was knighted in 1987,^[6] the year he stepped down as an MP. On 30 January 1992, he was created Life Peer as Baron Prentice, of Daventry in the County of Northamptonshire.^[7]

In the last few years before his death at age 77, he was President of the Devizes Conservative Association.

Prentice died at his home in Mildenhall, Wiltshire.^[1] His daughter, Christine, followed her father as a London Borough of Croydon councillor for Coulsdon East ward from 1992 to 1998.

A biography, which provides an in-depth account of Prentice's party-political transition during the 1970s, was published in 2015: Geoff Horn, Crossing the floor: Reg Prentice and the crisis of British social democracy.^[4]

• Catalogue of the Prentice papers Archives Division, London School of Economics