Henry Petty-Fitzmaurice, 3rd Marquess of Lansdowne

Henry Petty-Fitzmaurice, 3rd Marquess of Lansdowne, known as Lord Henry Petty from 1784 to 1809, was a British statesman. In a ministerial career spanning nearly half a century, he notably served as Home Secretary and Chancellor of the Exchequer and was three times Lord President of the Council, serving in every Whig or Liberal Ministry from 1806 to 1863.