Dictionary of Medieval Names
from European Sources

Aldeger m. Old High German alt, Old Saxon, Old Frisian ald 'old' + Old High German, Old Saxon gēr 'spear'.

France
Latin
c823 Aldegarius (nom) irminon-vol2 89, Palatiolum, Haldegarius (nom) ibid. 11, CE
Cite as: S.L. Uckelman. "Aldeger". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Aldeger.