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| 1829 | Wellesley, Arthur |  |
| 22nd Mar London A London Conference agrees the boundaries of an independent Greece |
| 1830 | Temple, Henry John |  |
| 4th Nov London Hosts an internatioal Conference in London on the independence of Belgium |
| 1st Dec London Informs Belgium any threat to Luxemburg will justify intervention of the German States |
| 1st Dec London Informs Belgium that it has no claim to Luxemburg |
| 20th Dec London The Conference formally agrees to the independence of Belgium from Holland |
| 1830 | Wellesley, Arthur |  |
| 4th Nov London Wellington opens the London Conference to discuss Belgian independence |
| 1831 | Temple, Henry John |  |
| 20th Jan The Conference agrees on the Belgian borders, the Bases de Separation |
| 17th April Persuades France to accept the Bases de Separation for Belgian frontiers |
| 1870 | Gladstone, William Ewart |  |
| London The Black Sea clauses of the treaty of Paris are abrogated |
| London The Black Sea loses it's neutrality |
| 1924 | MacDonald, James Ramsey |  |
| July London Hosts a Conference to discuss the implementation of the Dawes Plan |
| 1930 | MacDonald, James Ramsey |  |
| Jan London The resolutions of the Washington conference of 1922 are reinforced |
| Jan London The tonnage ratio for US, British & Japanese cruiser fleets will be 10:10:7 |
| 21st Jan London Opens the London conference on naval disarmament |
| 1st Oct London The Irish demand independence |
| 1934 | Baldwin, Stanley |  |
| 23rd Oct London The Naval Disarmament Conference opens in London |
| 1967 | Brown, George |  |
| 28th Mar London 1st day of the Anglo-Maltese conference to discuss British withdrawal |
| 1967 | Wilson, James Harold |  |
| 28th Mar London 1st day of the Anglo-Maltese conference to discuss British withdrawal |
| 1992 | Major, John Roy |  |
| Aug London Heads the conference of conflict in former Yugoslavia |
| 1995 | Major, John Roy |  |
| July London Peace proposals to the war in Bosnia are discussed |