This question has been rejected.
added by ShadowMaster Dec. 30, 2018, 5:34 p.m.

How long did the Duchy of Warsaw exist?

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The Duchy of Warsaw was a Polish state established by Napoleon I in 1807 from the Polish lands ceded by the Kingdom of Prussia under the terms of the Treaties of Tilsit. Following Napoleon's failed invasion of Russia, the duchy was occupied by Prussian and Russian troops until 1815, when it was formally partitioned between the two countries at the Congress of Vienna.
ShadowMaster
reach: rather globalEuropehistoryhistory of Europehistory of PolandNapoleonPoland

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flagBelarus
7%
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flagGermany
8%
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flagCanada
11%
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5%
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flagPoland
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flagthe Netherlands
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flagthe United States
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flagthe United Kingdom
13%
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flagRepublic of Ireland
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flagGreece
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