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Events on Thursday 9 July 1807 1
1807Treaties of TilsitNapoleon and Alexander I redraw the map of EuropeMeeting on a raft on the Niemen River, Napoleon and Tsar Alexander I negotiated treaties signed 7-9 July 1807 that ended the War of the Fourth Coalition. Russia allied with France and joined the Continental System against Britain, while Prussia was stripped of territory to form the Duchy of Warsaw. The settlement marked the height of Napoleon's power in Europe.