Prussia was founded in 1932.
Duchy of Prussia . The Duchy of Prussia was elevated to the Kingdom of Prussia in 1701 . Prussia . During the 18th century it had a major say in many international affairs under the reign of Frederick the Great . At the Congress of Vienna ( 1814 -- 15 ) , which redrew the map of Europe following Napoleon 's defeat , Prussia acquired a large section of north western Germany , including the coal-rich Ruhr .