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Dictionary of Medieval Names
from European Sources

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

France
Latin
1179 Walericus (nom) clairvaux-12thc 178
Cite as: S.L. Uckelman. "Walrich". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Walrich.