County of Oldenburg (1108-1774), Duchy of Oldenburg (1774-1810, 1813-1829), Grand Duchy of Oldenburg (1829-1918)
State of the Holy Roman Empire (1108-1806), Independent state (1806-1810, 1813-1871), State of the German Empire (1871-1918)
Location: Northwest Germany
Capital City: Oldenburg
Government type: Republic
Main languages: German
Main religions: Protestant Christianity, Catholic Christianity
Chronology
1108: County of Oldenburg separated from Saxony
1667-1773: In personal union with Denmark
1774: Count raised to Duke
1806-1807: Occupied by Holland
1810: Annexed to France
1813: Independence restored
1829: Duke takes title of Grand Duke, awarded by the Congress of Vienna in 1815, but unused until now.
1871: State of the German Empire
Currency
First Thaler (1418-1773)
1 Thaler = 2 Mark = 9 Schilling = 27 Schaf = 36 Mariengroschen = 54 Stüber = 144 Grote = 288 Blaffert = 576 Pfennig = 720 Schwaren • 1 Ducat = 2 Thaler • 1 Goldgulden = 1.5 Thaler
Second Thaler (1773-1810)
1 Thaler = 72 Grote
Third Thaler (1811-1871)
1 Thaler = 30 Groschen = 72 Grote = 360 Schwaren
Coins from Oldenburg in the collection
•2.5 Groschen, 1858 (Grand Duke Peter II (1853-1900), billon, Hanover mint, KM#195)