Counts, dukes and grand dukes of Oldenburg

This is a list of the counts, dukes, grand dukes, and prime ministers of Oldenburg.

Counts of Oldenburg

 * 1088 /1101–1108 Elimar I
 * 1108–1143 Elimar II
 * 1143–1168 Christian I the Quarrelsome
 * 1168–1211 Maurice I
 * 1209–1251 Otto I, joint rule with Christian II and later with John I
 * 1211–1233 Christian II
 * 1233–1272 John I
 * 1272–1278 Christian III
 * 1272–1301 Otto II, Count of Oldenburg-Delmenhorst
 * 1278–1305 John II
 * 1302–1323 Christian IV
 * 1305–1345 John III
 * 1331–1356 John IV
 * 1345–1347 Conrad I
 * 1368–1386 Conrad II
 * 1386–1420 Maurice II
 * 1368–1398 Christian V
 * 1398–1423 Christian VI
 * 1423–1440 Dietrich the Lucky
 * 1440–1448 Christian VII
 * 1448–1483 Gerhard VI "the Quarrelsome"
 * 1483–1500 Adolph, Count of Oldenburg-Delmenhorst
 * 1500–1526 John V
 * 1526–1529 John VI, joint rule with his brothers George, Christopher and Anthony I, forced to resign in 1529
 * 1526–1529 George, joint rule with his brothers John VI, Christopher and Anthony I, forced to resign in 1529
 * 1526–1566 Christopher, joint rule with his brothers John VI, George and Anthony I
 * 1526–1573 Anthony I, joint rule with his brothers John VI, George and Christopher
 * 1573–1603 John VII
 * 1573–1619 Anthony II, Count of Oldenburg-Delmenhorst
 * 1603–1667 Anthony Günther
 * 1667–1670 Frederick I, in personal union as Frederick III King of Denmark-Norway
 * 1670–1699 Christian VIII, in personal union as Christian V King of Denmark-Norway
 * 1699–1730 Frederick II, in personal union as Frederick IV King of Denmark-Norway
 * 1730–1746 Christian IX, in personal union as Christian VI King of Denmark-Norway
 * 1746–1766 Frederick III, in personal union as Frederick V King of Denmark-Norway
 * 1766–1773 Christian X, in personal union as Christian VII King of Denmark-Norway, ceded the county to the Holstein-Gottorp line
 * 1773 Paul I, ceded the county to his cousin of the Holstein-Gottorp line
 * 1773–1774 Frederick Augustus I (elevated to Duke in 1774), in personal union Prince-Bishop of Lübeck

Dukes of Oldenburg
1774–6 July 1785 Gottorp, Schleswig son of Christian August of Holstein-Gottorp and Albertina Frederica Kassel 21 November 1752 three children Oldenburg aged 73 1785–1810 Eutin son of Frederick August I and Ulrike Schloss Plön aged 69
 * Frederick Augustus I
 * Friedrich August von Oldenburg.jpg
 * 20 September 1711
 * Ulrike Friederike Wilhelmine of Hesse-Kassel
 * 6 July 1785
 * William, Duke of Oldenburg
 * William, Duke of Oldenburg
 * Coats of arms Grand Duché d Oldenbourg.svg
 * 3 January 1754
 * Never married
 * 2 July 1823
 * }


 * To France in 1810–1813

1813–2 July 1823 Eutin son of Frederick Augustus I and Ulrike Schloss Plön aged 69
 * William, Duke of Oldenburg
 * Coats of arms Grand Duché d Oldenbourg.svg
 * 3 January 1754
 * Never married
 * 2 July 1823

Grand Dukes of Oldenburg
1823–21 May 1829 Rastede nephew of Frederick Augustus I and cousin of William 6 June 1781 two children Oldenburg aged 74 1829–27 February 1853 Rastede son of Peter I and Friederike 24 July 1817 two children
 * Peter I
 * Peter I Oldenburg.jpg
 * 17 January 1755
 * Frederica of Württemberg
 * 21 May 1829
 * Augustus I
 * Augustus I
 * AugustOld.jpg
 * 13 July 1783
 * Adelheid of Anhalt-Bernburg-Schaumburg-Hoym

Ida of Anhalt-Bernburg-Schaumburg-Hoym 24 June 1825 one child

Cecilia of Sweden 5 May 1831 three children Oldenburg aged 69 1853–13 June 1900 Oldenburg son of Augustus I and Ida 10 February 1852 two children Rastede aged 72 1900–11 November 1918 Oldenburg son of Peter II and Elisabeth 18 February 1878 two children
 * 27 February 1853
 * Peter II
 * Peter II
 * NicolaasFrederikPeter.jpg
 * 8 July 1827
 * Elisabeth of Saxe-Altenburg
 * 13 June 1900
 * Frederick Augustus II
 * Frederick Augustus II
 * August II von Oldenburg 1902.jpg
 * 16 November 1852
 * Elisabeth Anna of Prussia

Elisabeth of Mecklenburg-Schwerin 24 October 1896 5 children Rastede aged 78
 * 24 February 1931
 * }

Full style

 * Grand Duke of Oldenburg, Heir in Norway, Duke of Schleswig, Holstein, Stormarn, Ditmarshes & Oldenburg, Prince of Lübeck and Birkenfeld, Lord of Jever and Kniphausen

Prime ministers of the Republic of Oldenburg

 * 1918–1919 Bernhard Kuhnt (USPD)
 * 1919–1923 Theodor Tantzen (DDP)
 * 1923–1930 Eugen von Finckh (no party)
 * 1930–1932 Friedrich Cassebohm
 * 1932–1933 Carl Röver (NSDAP)
 * 1933–1945 Georg Joel (NSDAP)
 * 1945–1946 Theodor Tantzen (FDP)
 * ''To Lower Saxony in 1946