skos:altLabel | - Otto
- Austrian imperial family
- Archduke Otto
- Archduke Otto of Austria
- Austrian Legion
- Archduke Otto of Austria, Crown Prince of Austria, Hungary and Bohemia
- '''Otto '''
- Archduchess Andrea von Habsburg
- Archduke Otto Habsburg, Crown Prince of Austria
- Archduke Otto von Habsburg
- Archduke Otto, Crown Prince of Austria
- Crown Prince Otto
- Crown Prince Otto of Austria
- Crown-Prince Otto von Habsburg
- Franz Joseph Otto von Habsburg
- Otto Habsburg-Lothringen
- Otto von Habsburg-Lorraine
- Otto, Crown Prince of Austria
- von HABSBURG Otto
- Otto von Habsburg, Crown Prince of Austria, Hungary, Croatia and Bohemia
- Archduke Otto von Habsburg, Crown Prince of Austria
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