skos:altLabel | - Charles August
- Charles II
- Charles III
- Carl II August
- Carl II August’s
- Charles II August
- Charles II August of Zweibrücken
- Charles II Christian
- Charles II, Duke of Zweibrücken
- Charles III Augustus Christian
- Charles of Zweibrücken
- Charles of Zweibrücken-Birkenfeld
- Duke Carl II August of Zweibrücken
- Duke of Zweibrücken
- Karl II August
- Karl II August Christian
- Karl II August of Zweibrücken
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