skos:altLabel | - captured
- siege
- Serdica
- seized the city
- Serdica (809), Siege of
- Serdica in 809
- Serdica, 809 Siege of
- Siege of Serdica
- Siege of Serdica (Sofia
- Siege of Serdica (Sofia)
- besieged and forced the surrender
- capture of Sofia
- capturing the important city of Sofia
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