Oldenburg
City
Capital of the Duchy and later Grand Duchy of Oldenburg until 1918.
Held by
- 1789 – August 6, 1806 Holy Roman Empire
- August 6, 1806 – December 12, 1810 Oldenburg
- October 14, 1808 – December 31, 1810 Confederation of the Rhine
- 1811 – April 12, 1814 France
- June 8, 1815 – May 18, 1848 German Confederation
- November 29, 1850 – August 23, 1866 German Confederation
- February 23, 1867 – June 30, 1867 Oldenburg
- July 1, 1867 – January 18, 1871 North German Confederation
- January 19, 1871 – November 9, 1918 German Empire
- November 11, 1918 – May 8, 1945 Germany
- since May 23, 1949 Germany
Capital of
- 1774 – November 11, 1918 Oldenburg