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 was a historical state originating out of the Duchy of Prussia and the Margraviate of Brandenburg , and centred on the region of Prussia . During the 18th century it had a major say in many international affairs under the reign of Frederick the Great .