Frederick William I, Elector of Brandenburg and…
January 1656 CE
Frederick William I, Elector of Brandenburg and Duke of Prussia, takes the Duchy of Prussia, formerly a Polish fief, as a fief from Charles X Gustav under the terms of the Treaty of Königsberg on January 17, 1656.
The Brandenburgian garrisons in Royal Prussia are withdrawn.
People
Groups
Brandenburg, (Hohenzollern) Margravate of
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Cossacks, Zaporozhian
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Sweden, (second) Kingdom of
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Denmark-Norway, Kingdom of
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Russia, Tsardom of
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Polish-Lithuanian Commonwealth (Commonwealth of the Two Nations)
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Prussia, Royal (Polish province)
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Brandenburg-Prussia
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