Dictionary of Medieval Names
from European Sources

Apollonius m. Ancient Greek Ἀπολλώνιος, a derivative of Ancient Greek Ἀπόλλων 'Apollo', the god of light.

The name of a 2nd C saint.

Estonia
Middle Low German
1435 Plonys BbRT p. 358
Italy
Latin
1450 Appolonio (abl) VitAs2 XI, Appolonius (nom) ibid. X; 1490 Appollonii (gen) ibid. I; 1521 Apollonii (gen) ibid. II
Latvia
Latin
1297 Poloni (gen) RigSB 182
Cite as: R. Le Get, S.L. Uckelman. "Apollonius". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Apollonius.