Dictionary of Medieval Names
from European Sources

Walantrude f. Old Frankish, Old German walh 'foreigner, stranger; slave' from Proto-Germanic *walhaz, from a Celtic tribal name + Proto-Germanic *þrūþ 'strength' or Proto-Germanic *trut 'maiden'.

France
Latin
c823 Walantrudis (nom) irminon-vol2 2, Gaugiacum, Waltrudis (nom) ibid. 56
Cite as: S.L. Uckelman. "Walantrude". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Walantrude.