Henry Charles Keith Petty-Fitzmaurice, 5th Marquess of Lansdowne, (14 January 18453 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.

Charles Maurice Petty-Fitzmaurice, 9th Marquess of Lansdowne, (born 21 February 1941), styled Earl of Shelburne between 1944 and 1999, is a British peer, landowner and army officer.

Henry Petty-Fitzmaurice, 3rd Marquess of Lansdowne, (2 July 178031 January 1863), known as Lord Henry Petty from 1784 to 1809, was a British statesman.