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The title Duke of Oldenburg and the use of the style "Highness" or "Royal Highness" has generally been restricted to the following persons:
- the ruler of the Duchy of Oldenburg before 1829
- the head of the Grand Ducal House of Oldenburg after the German Revolution
- the legitimate sons of a head of the Grand Ducal House of Oldenburg
- the legitimate male-line descendants of a head of the Grand Ducal House of Oldenburg
Pages in category "Dukes of Oldenburg"
The following 15 pages are in this category, out of 15 total. This list may not reflect recent changes.