A first attempt to change the situation in the Duchy was made in the Greater Poland Uprising of 1846 after which 254 Polish activists were imprisoned upon charges of conspiracy.
Esimene katse muuta olukorda hertsogkonnas tehti 1846. aasta Suur-Poola ülestõusuga, pärast mida vangistati 254 poola aktivisti vandenõus süüdistatuna.