Back Сирмиум (тема) Bulgarian Tema de Sírmium Catalan Θέμα Σιρμίου Greek Tema de Sirmio Spanish Sirmiumi teema Estonian Serbie (thème) French Srijemska tema Croatian Sirmijaus tema Lithuanian Tema de Sirmio Portuguese Tema Sirmijum Serbo-Croatian
| Theme of Sirmium Σίρμιο, θέμα Σιρμίου | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Theme of Byzantine Empire | |||||||||||||||
&sq=Envato&lang=en&file=File:Theme_of_sirmium_en.png) Map of Theme Sirmium within Byzantine Empire in 1025. | |||||||||||||||
| Capital | Sirmium | ||||||||||||||
| • Type | Theme | ||||||||||||||
| Historical era | Middle Ages | ||||||||||||||
• Annexation | 1018 | ||||||||||||||
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The Theme of Sirmium (Greek: θέμα Σιρμίου) was a Byzantine administrative unit (theme), which existed in present-day Serbia, Croatia and Bosnia and Herzegovina in the 11th century. Its capital was Sirmium (today Sremska Mitrovica).