Vlastimir

Vlastimir
archon (ἄρχων) [c]
Prince of Serbia
Reign	c. 830 – 850 [b]
Predecessor	Prosigoj
Successor	Mutimir
Born	before 805
Died	c. 851
Issue	Mutimir, Strojimir, and Gojnik
Dynasty	Vlastimirović
Father	Prosigoj
Religion	Slavic pagan

Vlastimir (Serbian Cyrillic: Властимир, Greek: Βλαστίμηρος^[a]; c. 805 – 851) was the Serbian prince from c. 830 until c. 851. Little is known of his reign. He held Serbia during the growing threat posed by the neighbouring, hitherto peaceful, First Bulgarian Empire, which had expanded significantly toward Serbia.

At the time, the Bulgarian Empire and the Byzantine Empire were at peace by treaty, and although the Byzantine Emperor was overlord of the Serb lands, he was unable to aid the Serbs in a potential war. Presian I of Bulgaria eventually invaded Serbia, resulting in a three-year-war, in which the Bulgarian army was devastated and driven out. Vlastimir then turned to the west, expanding well into the hinterland of Dalmatia. He is the eponymous founder of the Vlastimirović dynasty, the first Serbian dynasty.