Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne

His Excellency The Most Honourable The Marquess of Lansdowne KG GCSI GCMG GCIE PC
Minister without Portfolio
In office 25 May 1915 – 10 December 1916
Monarch	George V
Prime Minister	H. H. Asquith
Preceded by	Michael Hicks Beach
Succeeded by	Arthur Henderson
Leader of the House of Lords
In office 13 October 1903 – 4 December 1905
Monarch	Edward VII
Prime Minister	Arthur Balfour
Preceded by	The Duke of Devonshire
Succeeded by	The Marquess of Ripon
Secretary of State for Foreign Affairs
In office 12 November 1900 – 4 December 1905
Monarchs	Victoria Edward VII
Prime Minister	The Marquess of Salisbury Arthur Balfour
Preceded by	The Marquess of Salisbury
Succeeded by	Sir Edward Grey
Secretary of State for War
In office 4 July 1895 – 12 November 1900
Monarch	Victoria
Prime Minister	The Marquess of Salisbury
Preceded by	Henry Campbell-Bannerman
Succeeded by	St John Brodrick
Viceroy and Governor-General of India
In office 10 December 1888 – 11 October 1894
Monarch	Victoria
Prime Minister	William Ewart Gladstone The Marquess of Salisbury
Preceded by	The Earl of Dufferin
Succeeded by	The Earl of Elgin
5th Governor General of Canada
In office 23 October 1883 – 11 June 1888
Monarch	Victoria
Prime Minister	Canadian: John A. Macdonald British: William Ewart Gladstone The Marquess of Salisbury
Preceded by	The Marquess of Lorne
Succeeded by	The Lord Stanley of Preston
Parliamentary Under-Secretary of State for India
In office 29 April 1880 – 1 September 1880
Monarch	Victoria
Prime Minister	William Ewart Gladstone
Preceded by	Hon. Edward Stanhope
Succeeded by	The Viscount Enfield
Parliamentary Under-Secretary of State for War
In office 25 April 1872 – 17 February 1874
Monarch	Victoria
Prime Minister	William Ewart Gladstone
Preceded by	The Lord Northbrook
Succeeded by	The Earl of Pembroke
Lord Commissioner of the Treasury
In office 16 December 1868 – 25 April 1872
Monarch	Victoria
Prime Minister	William Ewart Gladstone
Preceded by	Lord Claud Hamilton
Succeeded by	Lord Frederick Cavendish
Member of the House of Lords Lord Temporal
In office 5 July 1866 – 3 June 1927 Hereditary Peerage
Preceded by	The 4th Marquess of Lansdowne
Succeeded by	The 6th Marquess of Lansdowne
Personal details
Born	Henry Charles Keith Petty-Fitzmaurice (1845-01-14)14 January 1845 London, United Kingdom of Great Britain and Ireland
Died	3 June 1927(1927-06-03) (aged 82) Clonmel, County Tipperary, Ireland
Political party	Liberal (until 1886) Liberal Unionist (1886-1912) Conservative (1912-1927)
Spouse	Lady Maud Hamilton
Children	Evelyn Cavendish, Duchess of Devonshire Henry Petty-Fitzmaurice, 6th Marquess of Lansdowne Lord Charles Petty-Fitzmaurice Beatrix Beauclerk, Duchess of St Albans
Parent(s)	Henry Petty-Fitzmaurice, 4th Marquess of Lansdowne Emily, 8th Lady Nairne
Alma mater	Balliol College, Oxford

Henry Charles Keith Petty-Fitzmaurice, 5th Marquess of Lansdowne, KG, GCSI, GCMG, GCIE, PC (14 January 1845 – 3 June 1927), was a British statesman who served successively as Governor General of Canada, Viceroy of India, Secretary of State for War and Secretary of State for Foreign Affairs.

In 1917, during the First World War, he wrote the "Lansdowne Letter", advocating in vain a compromise peace. A millionaire, he had the distinction of having held senior positions in Liberal and Conservative Party governments.^[1]