This is a sub project to House of Oldenburg the main target is to make a complete list of the rulers of Oldenburg from 1101 to present.
Counts
- Elimar I 1101-1108
- Elimar II 1108-1143
- Christian I 1143-1168 the Quarrelsome
- Maurice(Moritz)1168-1211
- Christian II 1211-1251
- Otto II 1211-1262
- John(Johann) IX 1251-1272
- Christian III 1272-1278 '
- John(Johann)II/X 1278-1305'
- John(Johann) III/XI 1305-1345
- Conrad I 1345-1368
- Conrad II 1368-1386 son of Conrad I
- Christian IV 1386-1398
- Maurice III 1386-1420
- Christian V 1398-1423
- Dietrich 1423-1440 the Lucky
- Christian VI 1440-1448 (In personal union with Denmark as Christian I King of Denmark)
- Gerard VI 1448-1483 the Quarrelsome
- Adolph 1483-1498
- John XIV 1483-1526
- Christian VII 1488-1492
- John XV1526-1529
- George1526-1529
- Christopher 1526-1529
- Anthony I 1529-1573
- John XVI 1573-1603
- Anthony II 1573-1577
- Anthony Günther 1603-1667
- Frederick I 1667–1670 in personal union as Frederick III King of Denmark
- Christian VIII 1670–1699 in personal union as Christian V King of Denmark
- Frederick II 1699–1730 in personal union as Frederick IV King of Denmark
- Christian IX 1730–1746 in personal union as Christian VI King of Denmark
- Frederick III 1746–1766 in personal union as Frederick V King of Denmark
- Christian X 1766–1773 in personal union as Christian VII King of Denmark, ceded the county to the Holstein-Gottorp line
- Paul I 1773 ceded the county to the his cousin of the Holstein-Gottorp line
Dukes - Holstein-Gottorp line'
- Frederick Augustus I 1773-1785 (elevated to Duke in 1774), in personal union Prince-Bishop of Lübeck
- Peter Frederick William 1785–1810
To France in 1810-1813
Grand Dukes - Holstein-Gottorp line'
- Peter I Frederick Louis 1823-1829
- Augustus I Paul Frederick (Augustus)1829–1853
- Peter II Nicholas Frederick (Peter) 1853–1900
- Frederick Augustus II 1900–1918
Heads of the Grand Ducal Family of Oldenburg (not ruling)
- Frederick Augustus II 1918-1931
- Hereditary Grand Duke Nikolaus 1931-1970
- Duke Anton Günther 1970-present