Dictionary of Medieval Names
from European Sources

Walcher m. Old Frankish, Old German walh 'foreigner, stranger; slave' from Proto-Germanic *walhaz, from a Celtic tribal name + Old High German heri 'host, army'.

France
Latin
a993? Vualcherii (gen) CartSavII 103; 1125 Walcheri (gen) CartStBert 10; 1138x1162 Walchero (abl) clairvaux-12thc 56; 1147 Walcherii (gen) ibid. 16, Walcherio (abl) ibid. 15; 1147x1158 Gaucheri (gen) ibid. 34; 1147x1162 Gaucheri (gen) ibid. 55; 1157 Galcherii (gen) ibid. 32; 1163–64 Gualcheri (gen) ibid. 109; 1164 Gualcheri (gen) ibid. 120, Walcheri (gen) ibid. 120; 1171 Walcherio (abl) ibid. 139; 1179 Gualcherii (gen) ibid. 171; 1378 Gauchero (dat) hanquetvol1 656, Waukerii (gen) ibid. 146
Old French
1296 Gauchier paris1296 p. 34
Middle French
1418 Gaucher HGParis p. 377; 1421 Gauchier favier p. 174; 1423 Gauchier ibid. 231; 1438 Gauchier ibid. 28
Italy
Latin
1156 Gaucherio (abl) CartYonne1 CCLXXX; 1179 Gualcherii (nom) CartHaut 25
Switzerland
Latin
1141 Walcherius (nom) CartHaut 3, Walcherus (nom) ibid. 3; 1150 Walcherus (nom) ibid. 4; 1154 Galcherius (nom) ibid. 5; 1163 Walcherii (gen) ibid. 14, Walchero (dat) ibid. 13; 1164 Walcherus (nom) ibid. 15; 1179 Walcherus (nom) ibid. 24; 1180 Galcherus (nom) ibid. 26; 1186 Walcherum (acc) ibid. 27; 1215 Walcherus (nom) ibid. 34; 1220 Walcherus (nom) ibid. 37; 1224 Galcherus (nom) ibid. 38
Cite as: S.L. Uckelman. "Walcher". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Walcher.