Oldenburg
Oldenburg. 1180 Independent. 1667 Denmark. 1773 Russia. 1777 Independent. 1834 Prussia. 1853 Zollverein. 1871 German Empire. 1919 Republic. 1945 West Germany.
Oldenburg. 1180 Independent. 1667 Denmark. 1773 Russia. 1777 Independent. 1834 Prussia. 1853 Zollverein. 1871 German Empire. 1919 Republic. 1945 West Germany.