Henry John Temple, 3rd Viscount Palmerston

First Liberal Party prime minister and dominant foreign policy figure

Last updated 10 October 2026

He was the first Liberal prime minister and dominated British foreign policy from 1830 to 1865.^[1] Palmerston has been described as the "first truly popular" prime minister, and he is the most recent British prime minister to have died while still in office.^[2]

Life and work

Palmerston was born in Westminster on 20 October 1784 and succeeded to his father's Irish peerage in 1802.^[3][2] He was educated at Harrow School, the University of Edinburgh, and St John's College, Cambridge.^[4][5][6] He became prime minister in 1855 after the fall of Aberdeen's coalition over the Crimean War.^[2] Palmerston died in October 1865 at the age of 80 years.^[2]

In 1807, Temple became a Tory MP in the House of Commons, and from 1809 to 1828 he held the post of Secretary at War, where he was responsible for organising the army's finances.^[2] Palmerston held the position of Foreign Secretary during three separate periods: 1830–1834, 1835–1841, and 1846–1851.^[2]

What the cited sources add

The Museum of the Prime Minister notes that Palmerston served in ministerial office for 46 years, a record for the modern era.^[7] The same source states that Palmerston was famous for his patriotism and unwavering commitment to protecting British interests.^[7] Little's account for the Liberal Democrat History Group records that Palmerston was the first Liberal prime minister, though he would have thought himself the Queen's minister rather than a party's.^[8] The Historic UK account describes Palmerston as well known for his quick wit and for his womanising.^[9]

The Museum of the Prime Minister adds that Palmerston died of a fever, not in the midst of a romantic encounter as rumours suggested.^[7] Little's account notes that Palmerston hated slavery and ensured the navy was used vigorously against the slave trade.^[8]

References

Wikipedia, "Henry John Temple, 3rd Viscount Palmerston" (CC BY-SA 4.0), which cites: Little, "Viscount Palmerston (Henry John Temple), 1784–1865", Liberal Democrat History Group; Brain, "Lord Palmerston", Historic UK; Bulwer, "The Life of Henry John Temple, Viscount Palmerston: with Selections from Hid Diaries and Correspondence, in Three Volumes", 1871 (we also read that source) en.wikipedia.org
Wikipedia, "Henry John Temple, 3rd Viscount Palmerston" (CC BY-SA 4.0), which cites: "Henry John Temple, 3rd Viscount Palmerston – MoPM", Museum of the Prime Minister (we also read that source) en.wikipedia.org
Wikipedia, "Henry John Temple, 3rd Viscount Palmerston" (CC BY-SA 4.0), which cites: Davies, "The Ancestry of Lord Palmerston", The Genealogist, 2008, p. 62–77 (original not read by us) en.wikipedia.org
Wikipedia, "Henry John Temple, 3rd Viscount Palmerston" (CC BY-SA 4.0), which cites: Ridley, p. 12. (original not read by us) en.wikipedia.org
Wikipedia, "Henry John Temple, 3rd Viscount Palmerston" (CC BY-SA 4.0), which cites: Ridley, p. 14.; David Steele, ‘Temple, Henry John, third Viscount Palmerston (1784–1865)’, Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, M (original not read by us) en.wikipedia.org
Wikipedia, "Henry John Temple, 3rd Viscount Palmerston" (CC BY-SA 4.0) en.wikipedia.org
"Henry John Temple, 3rd Viscount Palmerston – MoPM", Museum of the Prime Minister. facts only, no text reused. museumofpm.org
Little, "Viscount Palmerston (Henry John Temple), 1784–1865", Liberal Democrat History Group. facts only, no text reused. liberalhistory.org.uk
Brain, "Lord Palmerston", Historic UK. facts only, no text reused. historic-uk.com

Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Henry John Temple, 3rd Viscount Palmerston (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.

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