Algernon Percy, 4th Duke of Northumberland
| The Duke of Northumberland | |
|---|---|
| Duke of Northumberland by Francis Grant | |
| First Lord of the Admiralty | |
| In office 28 February 1852 – 17 December 1852 | |
| Monarch | Queen Victoria | 
| Prime Minister | The Earl of Derby | 
| Preceded by | Sir Francis Baring, Bt | 
| Succeeded by | Sir James Graham, Bt | 
| Personal details | |
| Born | 15 December 1792 | 
| Died | 12 February 1865 (aged 72) | 
| Nationality | British | 
| Political party | Conservative | 
| Spouse(s) | Lady Eleanor Grosvenor (d. 1911) | 
| Parent(s) | Hugh Percy, 2nd Duke of Northumberland Frances Julia Burrell | 
| Alma mater | St John's College, Cambridge | 
| Occupation | Member of Parliament | 
| Military service | |
| Allegiance | United Kingdom | 
| Branch/service | Royal Navy | 
| Years of service | 1805–c.1862 | 
| Rank | Admiral | 
| Commands | HMS Scout HMS Pelorus HMS Caledonia HMS Cossack HMS Driver | 
| Battles/wars | |
| Awards | Knight of the Order of the Garter | 
Algernon Percy, 4th Duke of Northumberland, KG, PC, FRS, FSA, FRGS, FRAS (15 December 1792 – 12 February 1865), styled Lord Algernon Percy from birth until 1816 and known as Lord Prudhoe between 1816 and 1847, was a British naval commander, explorer and Conservative politician.