Dictionary of Medieval Names
from European Sources

Pelagius m. A derivative of Ancient Greek πέλαγος 'sea'.

The name of a 3rd C Croatian martyr, a 4th-5th C British moralist whose views were condemned as heretical in the early 5th C, two 6th C popes, an 8th C king of Asturias, and a 10th C Spanish saint.

The name was most common in the Iberian peninsula.

Finland
Early Modern Swedish
1582 Palagia (nom) Audén1980 p. 172
Germany
Latin
1216 Pelagius (nom) hennes-vol1 25
Italy
Latin
581 Pelagius (nom) CartYonne1 II; 584 Pelagius (nom) ibid. III; 1224 Pelagius (nom) UrkRott-1 17
Portugal
Latin
1121 Pelagius (nom) PHGCRP-I no. 2; 1152 Pelagius (nom) ibid. no. 3; 1189 Pelagii (gen) ibid. no. 9, Pelagius (nom) ibid. no. 9; 1190 Pelagij (gen) ibid. no. 8, Pelagius (nom) ibid. no. 8; 1209 Pelagij (gen) ibid. no. 10; 1211 Pelagij (gen) ibid. no. 6, Pelagius (nom) ibid. no. 6; 1214 Pelagii (gen) ibid. no. 20, Pelagius (nom) ibid. no. 20; 1217 Pelagus (nom) ibid. no. 21; 1256 Pelagij (gen) ibid. no. 17, Pelagio (abl) ibid. no. 17, Pelagius (nom) ibid. no. 17; 1269 Pelagii (gen) ibid. no. 11
Spain
Latin
1145 Pelagio (nom) AnnOPraem-2 col. ccccxxvi; 1276 Pelagii (gen) CDGH XLVI
Cite as: R. Le Get, S.L. Uckelman. "Pelagius". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Pelagius.