SAXE-ALTENBURG - Treaties
| Signed on | In force on | Title |
|---|---|---|
| 16 April 1856 | 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 | |
| 30 May 1865 | 1 July 1865 | Treaty of Commerce between Great Britain and the Zollverein |