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| 1814 | Canning, George |  |
| Geneva Appointed Ambassador to Switzerland |
| 1814 | Wellesley, Arthur | |
| 5th July Paris Appointed Ambassador |
| 1820 | Canning, George | |
| London Appointed Minister of the US |
| 1825 | Canning, George | |
| Constantinople Appointed Ambassador to Turkey |
| 1831 | Canning, George | |
| London Appointed Minister of Constantinople, 2nd term |
| 1842 | Canning, George | |
| Constantinople Appointed Ambassador to Turkey |
| London Appointed Minister of Constantinople, 3rd term |
| 1924 | Henderson, Nevile Meyrick | |
| London Appointed Minister of Egypt |
| 1928 | Henderson, Nevile Meyrick | |
| Paris Appointed Ambassador to France |
| 1929 | Henderson, Nevile Meyrick | |
| Belgrade Appointed Ambassador to Yugoslavia |
| 1933 | Phipps, Eric | |
| Berlin Appointed Ambassador to Germany |
| 1935 | Henderson, Nevile Meyrick | |
| London Appointed Ambassador to Argentina |
| 1935 | Kennard, Howard | |
| London Appointed Ambassador to Poland |
| 1937 | Henderson, Nevile Meyrick | |
| Berlin Appointed Ambassador to Germany |
| 1937 | Phipps, Eric | |
| Paris Appointed Ambassador to France |
| 1939 | Seeds, William | |
| Moscow Appointed Ambassador to Russia |
| 1940 | Churchill, Winston Leonard Spencer | |
| 15th July Guernsey Commando raid on the Channel island of Guernsey, failes to achieve it's objective |
| 1940 | Hoare, Samuel | |
| Madrid Appointed Ambassador to Spain |
| 1941 | Wood, Edward Frederick Lindley | |
| Washington Appointed Ambassador to USA |
| 1944 | Cooper, Alfred Duff | |
| Paris Appointed Ambassador to France, liaises with the Free French |
| 1961 | Ormsby-Gore, David | |
| Washington Appointed Ambassador to USA |
| 1977 | Jay, Peter | |
| Appointed Ambassador to Washington, James Callaghan's son-in-law |
| 2002 | Dalton, Richard | |
| Sep Appointed Ambassador to Iran |
