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Dictionary of Medieval Names
from European Sources

Nadalberga f. Latin natalis 'natal, of birth' + Old High German berg 'mountain, hill'.

France
Latin
c823 Nadalberga (nom) irminon-vol2 91, Palatiolum
Cite as: S.L. Uckelman. "Nadalberga". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Nadalberga.