Duchy of Oldenburg
E152561
UNEXPLORED
The Duchy of Oldenburg was a historical German state in northwestern Europe, ruled by the House of Oldenburg and later incorporated into the German Confederation and the German Empire.
Observed surface forms (2)
| Surface form | Occurrences |
|---|---|
| Grand Duchy of Oldenburg | 3 |
| County of Oldenburg | 1 |
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
County of Oldenburg
this entity surface form:
Grand Duchy of Oldenburg
this entity surface form:
Grand Duchy of Oldenburg
this entity surface form:
Grand Duchy of Oldenburg