skos:altLabel | - Count of Oldenburg
- Duke of Oldenburg
- Duchy
- duchy
- County of Oldenburg
- Oldenburg
- Oldenburg-Delmenhorst
- Oldenburg's
- Duchess of Oldenburg
- Grand Duchy of Oldenburg
- State of Oldenburg
- duchy of Oldenburg
- '''Oldenburg'''
- Duchy of Oldelburg
- Dukes of Oldenburg
- Oldenburg (state)
- Oldenburg, Duchy of
- Oldenburg<small>, duchy</small>
|