Tuhia he tomokanga mo tenei whitianga - Ko te rua o nga Pirihimana Nui i whakaekea e nga ope Prussian (i raro hoki i a General Dąbrowski) i Wielkopolska (Pirihimana Nui) i te 1806, i mua o te hinga katoa o Prussia
Nā Napoléon i waihanga te Duchy o Warsaw i te tau 1807. Heoi, ko te hinganga o Napoleon i tana pakanga a Ruhia i arahi ki te whakakore i te "Duchy" i te Congress of Vienna (1815) me te hokinga mai o te mana Prussian.