Fulcher m. Old English folc, Old High German folk 'people, nation, tribe, race' + Old English here, Old High German heri 'host, army'.

England

Latin

● 1185x1186 Fulcherii (gen) PR-XXXVI p. 20

France

Latin

● 862x876 Folcherii (gen) InsMacon X; 1032x1100 Fulcherius (nom) LDS LXV; 1064 Fulcherius (nom) StVdM-II 715; 1082x87 Folcherius (nom) St-Barnard-Romans no. 120; 1123 Fulcherii (gen) CartNDJosaphat XII; 1125 Fulcherii (gen) CartStBert 10; 1138x1162 Fulcherius (nom) clairvaux-12thc 69; 1269/70 Foucherii (gen) NDParisII XXXII; 1273 Foucheri (gen) ibid. 2-XLIII

Old French

● 1301 Faukeres (nom) MemPic-vol17 p. 279; 1327 Foucquier MemDocMan-2 p. 185, Fouquier ibid. p. 175

Germany

Latin

● 720 Folcharium (acc) OrkGZ no. 6; 726 Folcarii (gen) ibid. no. 7; 822x875 Folckier (nom) TradCorb §154; 951 Fulcherus (nom) HambUrk-vol1 XXXVI; 963x1023 Folcheri (nom) TradCorb §226

Italy

Latin

◑ 1326 Fulcherinum (acc) Friuli-14thC no. 435, Fulcherinus (nom) ibid. no. 435

The Netherlands

Latin

● 1277 volkerus (nom) GesOIJ-1 p. 296

Switzerland

Latin

● 1210 Fulcherus (nom) CartChart 4