county · Germany and Central Europe

County of Oldenburg

1091 CE – 1774 CE (approx.) · capital Oldenburg

A North Sea county whose counts supplied kings to Denmark, Norway and Sweden, raised in 1774 to the Duchy of Oldenburg.

Origins

Count Elimar I appears in 1108, and his family built Oldenburg castle on the Hunte. The counts expanded over the marshes towards the Weser and the Jade, fighting the free Frisian peasants of Stedingen, who were crushed in a crusade in 1234.

Rule and society

In 1448 Count Christian of Oldenburg was elected King of Denmark as Christian I, founding the House of Oldenburg, which later ruled Denmark, Norway, Sweden, Russia and Greece in its various branches. Count Anton Günther kept Oldenburg out of the Thirty Years' War and was famous for horse breeding. The economy relied on cattle and dyke-building.

Decline and legacy

After Anton Günther died in 1667, Oldenburg passed to the Danish crown. In 1773 Denmark exchanged it with Russia, which gave it to Frederick August of Holstein-Gottorp, and in 1774 it was raised to a duchy. It later became a grand duchy and now part of Lower Saxony.

Lineage

Connections (3)

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Cite this page
APA
The Epoch Institute. (2026). County of Oldenburg. In The Epoch Institute States Register. https://the-epoch-institute.org/state/county-of-oldenburg
MLA
“County of Oldenburg.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/county-of-oldenburg. Accessed .
Chicago
The Epoch Institute. “County of Oldenburg.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/county-of-oldenburg.
Harvard
The Epoch Institute (2026) ‘County of Oldenburg’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/county-of-oldenburg (Accessed: ).

Last reviewed October 2026Random state ↻