Dictionary of Medieval Names
from European Sources

Aldegarde f. Old High German alt, Old Saxon, Old Frisian ald 'old' + Old Saxon gard, Old High German gart 'enclosure, protection; yard, garden'.

France
Latin
11thC Aldearda (nom) StVdM-II 729; 1060 Aldiarda (nom) ibid. 730
Cite as: S.L. Uckelman. "Aldegarde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Aldegarde.