Dictionary of Medieval Names
from European Sources

Radoslav m. Proto-Slavic *radъ 'glad, willing' + Slavic sława, slava 'glory, fame'.

The name of a 9th C Serbian prince and a 13th C Serbian king.

Czech Republic
Latin
1287 Radoslaus (nom) RTT-1.1 II; 1353 Radslao (dat) chlumecky 74, Radslav (nom) ibid. 8, p. 21, Radslaw (nom) ibid. 71; 1356 Radslaus (nom) ibid. 129; 1358 Radslaus (nom) ibid. 259, p. 32, Radslay (gen) ibid. 284, p. 33
Latvia
Latin
1294 Raslowe (nom) RigSB 250
Cite as: S.L. Uckelman. "Radoslav". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Radoslav.