The Oldenburg region consists of contiguous territory adjacent to the Weser River that was awarded to the Grand Duchy of Oldenburg after the Napoleonic Wars, with the exception of territory that previously belonged to the Bishopric of Münster.
The database starts and ends on different dates for different countries. The end date is always when France occupied the territory.
- Kniphausen: 1465, when the Lordship was founded, until 1807.
- Jever: 1517, when the last undisputed Frisian lord died, until 1807.
- Oldenburg: 1529, when the first Protestant count was installed, until 1811.
- Delmenhorst; 1547, when Delmenhorst first entered into a personal union with Oldenburg, until 1811.
- Amt Wildeshausen; 1523, when the Bishop of Münster assumed control, until 1811.
Sources for the Oldenburg region
Countries
in Oldenburgian or Danish Germany
- Oldenburg County/Duchy of Oldenburg
- Oldenburg-Kniphausen County/Duchy of Oldenburg (adm. Kniphausen)
- Oldenburg-Aldenburg County of Oldenburg (adm. Count of Aldenburg)
- Oldenburg-Hannover County of Oldenburg (adm. Hannover)
- Delmenhorst County of Delmenhorst
- Delmenhorst-Oldenburg County of Delmenhorst (in personal union with Oldenburg)
- Delmenhorst-Hannover County of Delmenhorst (adm. Hannover)
- Jever-Oldenburg Lordship of Jever (in personal union with Oldenburg)
- Kniphausen-Oldenburg Lordship of In- and Kniphausen (in personal union with Oldenburg)
- Kniphausen-Aldenburg Lordship of In- and Kniphausen (adm. Count of Aldenburg)
- Bremen-Hannover Duchy of Bremen (adm. Hannover)
in Frisian, Ascanian, Russian, or Lower Noble Germany or the Spanish Netherlands
- Jever Lordship of Jever
- Brabant-Jever Duchy of Brabant (adm. Jever)
- Jever-Zerbst Lordship of Jever (in personal union with Anhalt-Zerbst)
- Kniphausen Lordship of In- and Kniphausen (in personal union with Oldenburg)
in Ecclesiastical, Swedish, or British Germany
- Münster Bishopric of Münster
- Bremen-Vörde Archbishopric of Bremen
- Bremen-Wasaburg Duchy of Bremen (adm. Baron of Wasaburg)
- Bremen-Münster Duchy of Bremen (adm. Münster
- Bremen-Hannover Duchy of Bremen (adm. Hannover)
- Hannover Electorate of Hannover
Subdivisions
Oldenburg
- Oldenburg Stadt or Landvogtei Oldenburg
- Oldenburg Hausvogtei Oldenburg
- Hatten Vogtei Hatten
- Wardenburg Vogtei Wardenburg
- Wüstenland Vogtei Wüstenland
- Hammelwarden Vogtei Hammelwarden
- Moorriem Vogtei Moorriem
- Oldenbrok Vogtei Oldenbrok
- Strückhausen Vogtei Strückhausen
- Schwei Vogtei or Amt Schwei
- Neuenburg Landvogtei Neuenburg
- Neuenburg Amt Neuenburg
- Bockhorn Vogtei Bockhorn
- Zetel Vogtei Zetel
- Apen Amt Apen
- Apen Hausvogtei Apen
- Westerstede Vogtei Westerstede
- Jade Vogtei Jade
- Rastede Vogtei or Amt Rastede
- Zwischenahn Vogtei Zwischenahn
- Neuenburg Amt Neuenburg
- Varel Amt Varel
- Ovelgönne Amt or Landvogtei Ovelgönne
- Abbehausen Vogtei Abbehausen
- Golzwarden Vogtei Golzwarden
- Rodenkirchen Vogtei Rodenkirchen
- Stollhamm Vogtei Stollhamm
- Blexen Vogtei Blexen
- Burhave Vogtei Burhave
- Eckwarden Vogtei Eckwarden
- Land Wührden Amt Land Wührden
Delmenhorst
- Delmenhorst Hausvogtei Delmenhorst
- Stuhr Vogtei Stuhr
- Altenesch Vogtei Altenesch
- Berne Vogtei Berne
Jever and Kniphausen
- Jever Herrschaft Jever
- Kniphausen Herrschaft Kniphausen
Münster/Bremen
- Wildeshausen Stadt or Amt Wildeshausen