Burchard m. Old English, Old High German burg 'castle, city, stronghold' + Old Saxon hard, Old High German hart or Old English heard 'strong, hard'.

Czech Republic

Latin

● 1349 Purchardi (gen) chlumecky 144, Purchardus (nom) ibid. 103; 1350 Purcardo (abl) ibid. 194; 1351 Purcardo (abl) ibid. 1

Estonia

Middle Low German

● 1414 Borchard BbRT p. 347; 1433 Borgard ibid. p. 356; 1437 Borchart ibid. p. 360

France

Latin

● 1163 Burchardi (gen) clairvaux-12thc 99; 1258 Bourchardo (abl) ArrestReg-volI XVII, Candlemas; 1260 Bochardi (gen) ibid. XII, Candlemas, Bochardum (acc) ibid. XII, Candlemas

Middle French

● 1392 Bouchart MemBret-II col. 601

Germany

Latin

● 822x875 Borchard (nom) TradCorb §45, Borchardo (abl) ibid. §61, Borchardus (nom) ibid. §183, Burghard (nom) ibid. §21; 1098 Burchardi (gen) quix-vol1 25; 1103 Burchardus (nom) ibid. 62; 1112 Burchardi (gen) ibid. 26; 1122 Burchardus (nom) ibid. 27; 1142 Purchart (nom) mairhofer I; 1145 Purchart (nom) ibid. XIX; 1149 Purchardus (nom) ibid. XXIX; 1168 Burchardo (abl) quix-vol1 65; 1173 Burchardus (nom) ibid. 81; 1200 Burchardus (nom) hennes-vol1 5; 1207 Burchardus (nom) ibid. 8; 1214 Burchardus (nom) ibid. 16; 1216 Borkardo (abl) ibid. 26; 1219 Burcardus (nom) ibid. 40; 1225 Burchardus (nom) ibid. 68, Burkardus (nom) ibid. 69; 1230 Borkardo (abl) ibid. 83; 1232 Borchardus (nom) CDL-1.1.1 XII; 1233 Borchardus (nom) ibid. XIV; 1248 Burchardi (gen) hennes-vol1 126, Burchardus (nom) ibid. 126; 1259 Borchardus (nom) CDL-1.1.1 XXXI; 1310 Borchardus (nom) UrkHan 4

Early New High German

● 1497 Burckhart Nurn1497 314

Italy

Latin

● 1262 Burchardus (nom) hennes-vol1 194

Poland

Latin

● 1232 Burchardus (nom) hennes-vol1 87

Switzerland

Latin

● 1166 Bochardo (abl) CartHaut 18; 1167 Bochardus (nom) ibid. 22