New East Prussia was created in 1795.
Province of East Prussia was created in 1773.
New East Prussia ended in 1807.
Prussia was created in 1525.
Prussia ceased to exist at the end of World War 2. Most of the population of East Prussia, Pommernia and Silesia was expelled and resettled in West Germany in 1945-47.
East Prussia is now Poland, Russia (Kaliningrad), and Lithuania.
Originally Königsberg (now Kaliningrad). After the union of Brandenburg and Prussia, Berlin (the capital of Brandenburg) increased in importance, becoming the royal capital in the 18th century.
South Prussia was created in 1793.
West Prussia was created in 1773.
Province of Prussia was created in 1829.
Brandenburg-Prussia was created in 1618.
Kingdom of Prussia was created in 1701.
In the King of Prussia was created in 1982.