How much Prussian was Prussia? did the leaders speak prussian? was Prussia more German than Prussian? were prussians able to understand german and vice versa?
I'm talking Around 1800, long time after the formation of Prussia, but 70 years before the German Empire
Sorry, but could you clarify this question a bit? Are you referring to “Prussian” here as the Baltic tribe and Baltic language present in the area before the Teutonic invasion and Northern Crusades?