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Dictionary of Medieval Names
from European Sources

Adalgarde f. Old High German adal 'noble' + Old Saxon gard, Old High German gart 'enclosure, protection; yard, garden'.

France
Latin
c823 Adalgardis (nom) irminon-vol2 12, Wan; 11thC Adalgarda (nom) StVdM-II 729; 1070 Adalgarda (nom) ibid. 740
Cite as: S.L. Uckelman. "Adalgarde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Adalgarde.