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Dictionary of Medieval Names
from European Sources

Grimbald m. Old High German, Old Saxon grim 'grim, fierce, bold' + Old High German bald 'bold'.

The name of a 9th C French saint.

France
Latin
c823 Grimboldus (nom) irminon-vol2 15, Palatiolum
Cite as: S.L. Uckelman. "Grimbald". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Grimbald.