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Dictionary of Medieval Names
from European Sources

Madalgaria f. Old High German, Old Saxon mahal 'council, meeting' + Old High German, Old Saxon gēr 'spear'.

France
Latin
814 Madalgaria (nom) StVdM-II H4
Cite as: S.L. Uckelman. "Madalgaria". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Madalgaria.