Dictionary of Medieval Names
from European Sources

Svetoslav m. Slavic svet, sviat, from Proto-Slavic *světъ, from Proto-Indo-European *ḱweytos 'bright, shine' + Slavic sława, slava 'glory, fame'.

The name of a 10th C king of Croatia, a 10th C grand prince of Kiev, an 11th C grand prince of Kiev, a 12th C grand prince of Kiev, a 12th C prince of Novgorod, and a 13th C prince of Novgorod.

Czech Republic
Latin
1350 Swathoslaus (nom) chlumecky 207
Cite as: S.L. Uckelman. "Svetoslav". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Svetoslav.