Arnoul and Ernoul are Norman variants.  For more information, see Morlet, s.nn. Arnou(x), Ernou.
  
  
- Austria
- 
- Latin
- ● 890 Arnolfi (gen) UrkStyria 9;
 898 Arnolfi (gen) ibid. 12;
 928 Arnulfi (gen) ibid. 18;
 931 Arnulfi (gen) ibid. 20;
 c1070 Arnolfi (gen) ibid. 71
 
- Belgium
- 
- Latin
- ● 1107 Arnulfus (nom) CartStBert 3;
 1190 Arnulphus (nom) ibid. 26;
 1355 Arnulphus (nom) AM6 p. 8
 
- Brabant
- 
- Latin
- ● 1312 Arnolphus (nom) JeanIII p. 10,
 Arnulphus (nom) ibid. p. 2
 
- England
- 
- Latin
- ● 1189 Ernulfus (nom) GASurv p. 205;
 1222 Arnulfus (nom) StPaulDom p. 97;
 1300 Arnulphus (nom) ProcSuf-vol3 p. 233
 
- France
- 
- Latin
- ● 780 Arnulfus (nom) CartNoaille I;
 c823 Arnulfus (nom) irminon-vol2 7, Palatiolum;
 937x993 Arnulfi (gen) CartSavII 1;
 969 Arnulfi (gen) ibid.;
 c996 Arnulfi (gen) ibid. 6;
 11thC Arnulphus (nom) CartSPL1 I;
 1013 Arnulfus (nom) CartSavII 8;
 1013x1033 Arnulfi (gen) CartStPC XLII,
 Arnulfus (nom) ibid. XLII;
 1022 Arnulfus (nom) DocMonSav p. 99;
 1029x1033 Arnulfus (nom) CartStPC XII;
 1047 Arnulfus (nom) CartNDSaintes II;
 1059 Arnulfus (nom) StVdM-II 689;
 1067 Arnulfus (nom) CartNDSaintes XII;
 1101x1129 Arnulfus (nom) CartStPC XXVI,
 Arnulphus (nom) ibid. XXVIII;
 1107 Ernulfus (nom) ibid. XVII;
 1112 Arnulfo (abl) CartNDJosaphat I,
 Arnulphus (nom) ibid. I;
 1119 Arnulfus (nom) ibid. VII;
 1121 Arnulfo (abl) ibid. IX;
 1123 Arnulfus (nom) CartYonne1 CXXXVI;
 1130x1150 Ernulfus (nom) CartStPC XXVII;
 1135 Arnulfi (gen) CartNDdOurscamp LXXVIII,
 clairvaux-12thc 7;
 1138x62 Arnulfi (gen) ibid. 86,
 Arnulfus (nom) ibid. 61,
 Ernulfus (nom) ibid. 79;
 c1139 Ernulfus (nom) CartNoyers DXII;
 c1140 Arnulfum (acc) CartNDdOurscamp LXXXIII;
 1147 Arnulfo (abl) clairvaux-12thc 15,
 Arnulfus (nom) ibid. 15;
 1147x61 Arnulfus (nom) ibid. 38;
 1147x62 Arnulfus (nom) ibid. 55,
 Ernulfus (nom) ibid. 44;
 1150 Hernulfus (nom) ibid. 22;
 1163 Arnulphi (gen) CartNDdOurscamp XCVI,
 Ernulfo (abl) clairvaux-12thc 104;
 1163–64 Arnulfus (nom) ibid. 108;
 1164 Arnulfus (nom) ibid. 120;
 1166 Ernulfus (nom) ibid. 128;
 1173 Arnulfus (nom) ibid. 155;
 1174 Arnulfo (abl) ibid. 158;
 1178 Hernulphus (nom) ibid. 168;
 1179 Arnulfi (gen) ibid. 181,
 Arnulfus (nom) ibid. 181;
 1190 Arnulfus (nom) CartNDdOurscamp LXXIX;
 1196 Arnulfus (nom) ibid. LXIV;
 1260 Arnulpho (abl) ArrestReg-volI VII, Candlemas,
 Arnulphum (acc) ibid. XV, Ascension;
 1267 Arnulfus (nom) NDParisII 2-XXIX;
 1270 Arnulphus (nom) ibid. 2-XLI;
 1301 Arnulphi (gen) MemPic-vol17 p. 247,
 Arnulphus (nom) ibid. p. 177;
 1378 Arnulpho (dat) hanquetvol1 190
- Old French
- ● 1262 Ernouf (obl) StOuen p. 4;
 1292 Ernoul (obl) HistHdVParis p. 118;
 1296 Ernoul paris1296 p. 5;
 1313 Arnoul Paris1313 p. 72,
 Ernol ibid. p. 2,
 Ernoul ibid. p. 16
- ◑ 1313 Ernoulet Paris1313 p. 71
- Middle French
- ● 1365 Arnoul ActsCharlesV no. 231;
 1388 Ernoul thierry;
 1392 Arnoul MemBret-II col. 615,
 Ernoul ibid. col. 610;
 1393 Arnoul ibid. col. 620;
 1418 Arnoul DdB1418 p. 198;
 1421 Arnoul favier 830;
 1438 Arnoul ibid. 17;
 1562 Arnoul RegPCC-1 p. 12;
 1563 Arnoul ibid. p. 18
- ◑ 1418 Arnoulet DdB1418 p. 197,
 HGParis p. 373,
 Ernoulet DdB1418 p. 212,
 HGParis p. 386;
 1421 Arnoulet favier 70,
 Arnoullet ibid. p. 227;
 1423 Arnoulet ibid. 355;
 1438 Arnoulet ibid. 9
 
- Germany
- 
- Latin
- ● 828 Arnolf (nom) OrkGZ no. 29;
 842 Arnolfus (nom) HambUrk-vol1 X;
 888 Arnolfi (gen) ibid. XXII,
 quix-vol1 5,
 Arnolfus (nom) HambUrk-vol1 XXII,
 quix-vol1 5,
 Arnolphi (gen) ibid. 5;
 891 Arnolfi (gen) UrkStyria 10;
 895 Arnolfi (gen) ibid. 11;
 930 Arnulphi (gen) quix-vol1 10;
 1064 Arnolphus (nom) ibid. 92;
 1100 Arnulfus (nom) ibid. 78;
 1103 Arnolphus (nom) ibid. 62,
 Arnulphus (nom) ibid. 62;
 1108 Arnulfus (nom) ibid. 85;
 1130 Arnulphus (nom) ibid. 63;
 1134 Arnulphi (gen) ibid. 97;
 1135 Arnulphus (nom) ibid. 64;
 1136 Arnulphi (gen) ibid. 80,
 Arnulpho (abl) ibid. 98,
 Arnulphus (nom) ibid. 98;
 1153 Arnulphus (nom) ibid. 30
 
- Israel
- 
- Latin
- ● 1115 Arnulfo (abl) CartNDJosaphat VI,
 Arnulfus (nom) ibid. VI
 
- Italy
- 
- Latin
- ● c1080 Arnolfi (gen) UrkStyria 83
 
- Scotland
- 
- Latin
- ● 1094 Earnulf (nom) ESC XII
 
- Sweden
- 
- Latin
- ● 1350 Arnolpho (dat) SDHK no. 6023
- Old Swedish
- ● 1379 Ærinolf (nom) SDHK no. 11542
 
Cite as: J. Uckelman, S.L. Uckelman. "Arnulf". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Arnulf.