Dictionary of Medieval Names
from European Sources

Walateus m. Old Frankish, Old German walh 'foreigner, stranger; slave' from Proto-Germanic *walhaz, from a Celtic tribal name + Old High German deo 'servant'.

France
Latin
c823 Walateo (nom) irminon-vol2 59, CE, Walateus (nom) ibid. 2, Gaugiacum
Cite as: S.L. Uckelman. "Walateus". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Walateus.