Dictionary of Medieval Names
from European Sources

Zwentibold m. A Latinization of Old Church Slavic Свѧтопълкъ, from Slavic svet, sviat, from Proto-Slavic *světъ, from Proto-Indo-European *ḱweytos 'bright, shine' + Polish pułk 'regiment'. The Latin spelling of the deuterotheme was influenced by Old High German bald 'bold'.

The name of two 9th C rulers of Moravia, a 9th C king of Lotharingia and saint, two 11th C grand princes of Kiev, and a 12th C duke of Bohemia.

Austria
Latin
898 Zuentibolch (nom) UrkStyria 12; 927 Zuentibold (nom) ibid. 17; 930 Zuentipolc (nom) ibid. 19; 931 Zuentipolch (nom) ibid. 20
Germany
Latin
896 Zuentebolcho (abl) quix-vol1 6, Zuentebolchus (nom) ibid. 6, Zuenteboldi (gen) ibid. 6; 897 Zuenceboldi (gen) ibid. 7, Zuendeboldus (nom) ibid. 7; 910 Zuendiboldus (nom) ibid. 9; c925 Zuentipolch (nom) UrkStyria 15; 925 Zuentipolh (nom) ibid. 14
Poland
Latin
1248 Swantopolcus (nom) UrkMeck1 no. XXXV
Sweden
Latin
1350 Suantæpolx (gen) SDHK no. 6038
Cite as: J. Uckelman, S.L. Uckelman. "Zwentibold". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2023, no. 1. http://dmnes.org/2023/1/name/Zwentibold.