Prussia was founded in 1932.
Duchy of Prussia . The Duchy of Prussia was elevated to the Kingdom of Prussia in 1701 . The Kingdom of Prussia ( Königreich Preußen ) was a German kingdom that constituted the state of Prussia between 1701 and 1918 and included parts of present-day Germany , Poland , Russia , Lithuania , Denmark , Belgium and the Czech Republic . Prussia . During the 18th century it had a major say in many international affairs under the reign of Frederick the Great . The Kingdom of Prussia was now so large and so dominant in the new Germany that [ Junker ( Prussia ) , Junker ] s and other Prussian élites identified more and more as Germans and less as Prussians .