In 1937 (with the Greater Hamburg Act), it lost the exclave districts of Eutin near the Baltic coast and Birkenfeld in southwestern Germany to Prussia and gained the City of Wilhelmshaven; however, this was a formality, as the Hitler régime had de facto abolished the federal states in 1934.
•
Jever had been acquired before he became count, but in 1624 he added Kniphausen and Varel to his lands, with which in 1647 Delmenhorst was finally united.
•
At this time, the county of Delmenhorst formed part of the dominions of the counts of Oldenburg, but afterwards it was on several occasions separated from them to form an appanage for younger branches of the family.
•
Lutheranism was introduced into the county by Anthony I (1505–73, r. from 1529), who also suppressed the monasteries; however, he remained loyal to Emperor Charles V during the Schmalkaldic War, and was able thus to increase his territories, obtaining Delmenhorst in 1547.
Oldenburg | Grand Duchy of Lithuania | Duchy of Brabant | Duchy of Saxony | Duchy of Carinthia | Duchy of Burgundy | Duchy of Cornwall | Claes Oldenburg | Grand Duchy of Hesse | Grand Duchy of Mecklenburg-Schwerin | House of Oldenburg | Duchy of Parma | County of Oldenburg | Chancellor of the Duchy of Lancaster | Duchy of Warsaw | Duchy of Prussia | Duchy of Jülich | Lorraine (duchy) | Grand Duchy of Baden | Duchy of Milan | Duchy of Mecklenburg-Schwerin | Duchy of Lancaster | Duchy of Holstein | Duchy of Savoy | Duchy of Nassau | Duchy of Limburg | Duchy of Württemberg | Duchy of Pomerania | Duchy of Luxembourg | Grand Duchy of Oldenburg |
Münnich was born at Neuenhuntorf in the Grand Duchy of Oldenburg in the military family of Anton Günther Mönnich (since 1688 von Münnich, an east-Frisian nobility).
The coat of arms of Oldenburg is the coat associated with the state of Oldenburg, a county, duchy and grand duchy, that existed between 1180 and 1918, and the associated with the parts of the House of Oldenburg that ruled the state.
In 1773 she agreed to cede the territorial claims of her son to the Holstein-Gottorp lands still held by Denmark, obtaining in exchange the German countships of Oldenburg and Delmenhorst, elevated in 1776 into the duchy of Oldenburg within the Holy Roman Empire.
In 1773, they exchanged the County of Oldenburg for the Gottorp lands in Holstein, bringing all of Holstein under their control.
The Grand Duchy of Oldenburg (German: Großherzogtum Oldenburg) (also known as Holstein-Oldenburg) was a Grand Duchy within the German Confederation, North German Confederation, and German Empire, which consisted of three widely separated territories: Oldenburg, Eutin and Birkenfeld.
The Grand Duchy of Oldenburg gained an important link to the south in 1876 with the so-called Southern Railway from Oldenburg via Quakenbrück as far as Eversburg on the Osnabrück–Rheine line.