Unnamed 7th-century Serbian ruler in the context of "De Administrando Imperio"

The House of Vlastimirović (Serbian Cyrillic: Властимировић, pl. Vlastimirovići / Властимировићи) was the first Serbian royal dynasty, named after Prince Vlastimir (ruled c. 831–851), who was recognized by the Byzantine Empire. The dynasty was established with the unnamed 7th-century Serbian ruler, who ruled during the reign of Emperor Heraclius (610–641). The Vlastimirović dynasty ruled in Serbia until the 940s/960s, when some of the Serbian lands were annexed by the Byzantine Empire.

Višeslav (Serbian Cyrillic: Вишеслав) or Vojislav (Serbian Cyrillic: Војислав), from Boïsesthlabos (Greek: Βοϊσέσθλαβος), was a Serbian ruler and the first known by name, who ruled in c. 780. Serbia was a Slavic principality, subject to the Byzantine Empire, located in the western Balkans, bordering with Bulgaria in the east. Mentioned in the De Administrando Imperio (DAI) from the mid-10th century, Višeslav was a progenitor of the Serbian ruling family, known in historiography as the Vlastimirović dynasty. He was descended from the unnamed Serbian prince who led his people to the Dalmatia province and established hereditary rule under Byzantine suzerainty. The names of Višeslav's predecessors were not included in the DAI. The dynasty ruled the Principality of Serbia from the early 8th century until around 960.