The Treaty of Amity and Commerce between the Kingdom of Prussia and the Tokugawa Shogunate (Japanese: 徳川幕府) (1861) opened diplomatic relations and trade between the two countries.
The treaty was signed in Edo on January 24, 1861, by Count Friedrich Albrecht zu Eulenburg, Envoy Extraordinary and Plenipotentiary Minister of the Prince Regent of Prussia at the Courts of China, Japan, and Siam on the one hand, and by Muragaki Awaji no kami (村垣淡路守), Takemoto Zusho no kami (竹本図書頭) and Kurokawa Satsu (黒川左中), Plenipotentiaries of the Shogun from Japan on the other side.
The proposal was accepted by the Shogunate, and led to the Treaty of Amity and Commerce between Prussia and Japan, signed on January 24, 1861, in Edo.
[4] The exchange of the ratifications of the Treaty of 24 January 1861 between Prussia and Japan took place on board the Prussian frigate SMS Gazelle in the Bay of Edo on 20 February 1864.
The Prussian Envoy, Guido von Rehfues, had arrived at Yokohama mid August 1863 with the Treaty ratified by the King of Prussia.