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A list of duke titles no longer used (extinction) or have been suspended.
See also: Category:Former duchies
This category has the following 8 subcategories, out of 8 total.
- ► Dukes of Austria (2 C, 24 P)
- ► Dukes of Germany (73 C, 21 P)
- ► Dukes of Italy (42 C, 29 P)