The base support of Prussian rule was from influx of German colonists, officials and tradesmen, whose immigration started in 1772 due to Partitions of Poland and while it was halted in 1806, it soon was reinstated after 1815 as planned systemic action of Prussian government. The Prussians knew exactly that Polish aspirations were involved with independence, however they were considering at the time two different methods to subdue Polish resistance. One advocated ruthless Germanization of the Polish provinces, the other pursued by Chancellor Hardenberg wanted to gain support of Polish higher classes, while turning them away from Russian Tsar Alexander I.