skos:altLabel | - his son
- Ferdinand
- Ferdinand IV
- Ferdinando IV
- :Ferdinand IV, Grand Duke of Tuscany
- Archduke Ferdinand, Grand Prince of Tuscany
- Ferdinand IV, the last Grand Duke of Tuscany
- Ferdinand Salvator, Archduke of Austria
- Ferdinand, Hereditary Grand Duke of Tuscany
- Ferdinando IV di Toscana
- Archduke Ferdinand of Austria, Grand Duke of Tuscany
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