Dictionary of Medieval Names
from European Sources

Madaler m. Old High German, Old Saxon mahal 'council, meeting' + Old High German heri 'host, army'.

France
Latin
c823 Madalharius (nom) irminon-vol2 6, Wan
Cite as: S.L. Uckelman. "Madaler". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2020, no. 1. http://dmnes.org/2020/1/name/Madaler.