Because the victorious Allies of World War 2 wanted it that way that Prussia is part of Poland, Russia, and Lithuania.
Prussia.....=D Prussia.....=D
It was a Prussia - part of German land.
East Prussia is now Poland, Russia (Kaliningrad), and Lithuania.
Russia, Austria-Hungary, and Germany
Austria did not participate in the second partition of Poland.
Germany, Poland, Russia, Lithuania, Denmark, Belgium and the Czech Republic were formally part of Prussia.
A very large part of Poland was incorporated in Russia in 1888. The rest was in Austria and Prussia. There was no Polish state or government in 1888.
Prussia.....=D Prussia.....=D
No. Hungary in below Austria. Prussia is now part of Germany, Poland, the baltic states, Russia, Et cetera. Prussia, was never part of Hungary either.
It was a Prussia - part of German land.
Prussia, Russia and Austria, although Austria did not take part in the second partition (there were three).
East Prussia is now Poland, Russia (Kaliningrad), and Lithuania.
Russia, Austria-Hungary, and Germany
Austria did not participate in the second partition of Poland.
Russia
No-one, since Poland was never colonized per se. There have been three partitions of Poland though, in which Prussia, Russia and Austria (though only in the 1st and 3rd one) took part.
Prussia is a country that was dissolved after World War II, so it is no longer on the maps. However, much of Eastern Europe was at one time or another part of Prussia and its many incarnations. If you are wondering about Prussia directly before it was dissolved, it would be between Germany and Poland on modern maps, and a bit on the coast of the Baltic sea where modern day Kaliningrad Oblast is now.