page_title: Diocese of Dacia
section_title: History
hierarchical_section_title: Diocese of Dacia / History
caption_attribution_description: English: Map of the Roman Empire with its dioceses, in 400 AD. Français&#160;: Carte de l'Empire romain avec ses diocèses, en 400 ap. J.-C.
context_page_description: The Diocese of Dacia was a diocese of the later Roman Empire, in the area of modern western Bulgaria, central Serbia, Montenegro, northern Albania and northern North Macedonia. It was subordinate to the Praetorian prefecture of Illyricum. Its capital was at Serdica.
caption: Roman Empire with dioceses in 400 AD
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