| 1 May 1844 |
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Treaty of Commerce and Navigation, between Great Britain and Mecklenburg-Schwerin |
| 16 April 1856 |
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Declaration respecting Maritime Law, signed by the Plenipotentiaries of Great Britain, Austria, France, Prussia, Russia, Sardinia, and Turkey, assembled in Congress at Paris - April 16, 1856 |
| 14 March 1857 |
31 March 1857 |
Treaty between Great Britain, Austria, Belgium, France, Hanover, Mecklenburg-Schwerin, Oldenburg, Netherlands, Prussia, Russia, Sweden and Norway, and the Hanse Towns, on the one part, and Denmark, on the other part, for the Redemption of the Sound Dues |
| 31 July 1858 |
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Declaration respecting commercial intercourse between Mecklenburg-Schwerin and the Ionian Islands |
| 22 June 1861 |
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Treaty between Great Britain, Austria, Belgium, Brazil, Denmark, Spain, France, Mecklenburg-Schwerin the Netherlands, Portugal, Prussia, Russia, Sweden and Norway, and the Hanse Towns, on the one part, and Hanover on the other part, for the Redemption of the Stade Toll |
| 22 August 1864 |
22 June 1865 |
Convention for the Amelioration of the Condition of the Wounded in Armies in the Field |