skos:altLabel | - Bulgaria
- Bulgarian
- Kingdom
- Monarchy abolished
- authorities
- kingdom
- third
- Prince
- Romania
- monarchy
- Bulgarians
- Tsar
- Tsarist government
- Bulgarian Empire
- Tsardom of Bulgaria
- Bulgarian Kingdom
- Principality of Bulgaria
- Tsaritsa
- Bulgaria's
- Bulgarian Tsardom
- Bulgarian government
- Bulgarian occupation authorities
- Bulgarian subject
- Bulgraria
- Bulkaria
- Interwar Bulgaria
- Older Princesses
- Third Bulgarian Kingdom
- Tsarist era
- Younger Princesses
- elevated to a kingdom
- monarchist government
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