Bulgar–Serb War (839–842)

Bulgar–Serb War (839–42)
Part of the Bulgarian–Serbian wars (medieval)

Bulgarian Empire, Serbian principalities and the Balkans in the 9th century
Date839–842
Location
Central Balkans
Result Serbian victory
Belligerents
First Bulgarian Empire Serbian Principality
Commanders and leaders
Presian I Vlastimir
Casualties and losses
Heavy Unknown

The Bulgarian-Serbian War of 839–842 was fought between the First Bulgarian Empire and the Serbian Principality. It was the first conflict of the medieval Bulgarian–Serbian Wars.