New East Prussia was created in 1795.
Province of East Prussia was created in 1773.
New East Prussia ended in 1807.
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.
Prussia was created in 1525.
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.
East Prussia was part of the German state of Prussia during World War 2. It was actually part of Prussia from 1772 until 1829 and 1878 until 1945.
Province of Prussia was created in 1829.
In the King of Prussia was created in 1982.
West Prussia was created in 1773.
Brandenburg-Prussia was created in 1618.
Kingdom of Prussia was created in 1701.