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Dictionary of Medieval Names
from European Sources

Nadalger m. Latin natalis 'natal, of birth' + Old High German, Old Saxon gēr 'spear'.

France
Latin
c823 Nadalgarius (nom) irminon-vol2 29, Palatiolum
Cite as: S.L. Uckelman. "Nadalger". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 2. http://dmnes.org/2016/2/name/Nadalger.