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| Date from | Date to | Event | Source |
|---|---|---|---|
| 3.1805 | Entered the Navy | NBD1849 | |
| 3.1805 | 5.1806 | Tribune (36)
1803-1839 , 1st Class VolunteerBritish 36 Gun 5th Rate Frigate | NBD1849 |
| 5.1806 | 2.1810 | Fame (74)
1805-1817 , MidshipmanBritish 74 Gun 3rd Rate Ship of the Line | NBD1849 |
| 2.1810 | 1.1811 | Hydra (38)
1797-1820 , MidshipmanBritish 38 Gun 5th Rate Frigate | NBD1849 |
| 1.1811 | 16.12.1811 | Christian VII (80)
1807-1838 , MidshipmanBritish 80 Gun 3rd Rate Ship of the Line | NBD1849 |
| 16.12.1811 | Lieutenant | NBD1849 | |
| 8.3.1814 | Commander | CSORN | |
| 8.3.1814 | 5.1814 | Swallow (16)
1805-1815 , Commander, and Commanding OfficerBritish 16 Gun Unrated Sloop | BWAS-1793 |
| 8.1815 | 19.9.1815 | Driver (18)
1797-1834 , Commander, and Commanding OfficerBritish 18 Gun Unrated Sloop | NBD1849 |
| 19.8.1815 | Captain | CSORN | |
| 19.8.1815 | Placed on Half-Pay | NBD1849 | |
| 19.8.1815 | 9.1815 | Cossack (22)
1806-1816 , Captain, and Commanding OfficerBritish 22 Gun 6th Rate Post Ship | NBD1849 |
| 1816 | Appointed 1st Knight Bachelor Prudhoe | E-WIKI | |
| 9.4.1818 | Elected a Fellow of the Royal Society | NBD1849 | |
| 11.2.1847 | Succeeded as 4th Duke of Northumberland | E-WIKI | |
| 2.3.1852 | 5.1.1853 | Appointed First Lord of the Admiralty | OHMB4 |