Hartman m. Old Saxon hard, Old High German hart 'strong, hard' + Old High German man 'man'.

Austria

Latin

● c12thC Hartmannus (nom) GCSStFl p. 193

Czech Republic

Latin

● 1353 Hartmanno (dat) chlumecky 26, p. 22

Estonia

Middle Low German

● 1426 Hartman BbRT p. 351

Germany

Latin

● 1142 Hartmann (nom) mairhofer I, Hartmanni (gen) ibid. I, Hartmannus (nom) ibid. I; 1143 Hartmanni (gen) ibid. XIV; 1144 Hartmannus (nom) ibid. XV; 1145 Hartmanni (gen) ibid. XX, Hartmannus (nom) ibid. LXI[XXI]; 1147 Hartmannus (nom) ibid. XXII; 1149 Hartmannus (nom) ibid. XXXIV; 1197 Hartmannus (nom) CDL-1.1.1 I; 1214 Harthmannus (nom) hennes-vol1 16, Hartmannus (nom) ibid. 15; 1216 Hartmannus (nom) ibid. 20; 1219 Hartmannus (nom) ibid. 37; 1225 Hartmannus (nom) ibid. 68

Early New High German

● 1497 Hartmann Nurn1497 2592

Italy

Latin

● 1261 Hartmannus (nom) FRA-XXXL 211

Latvia

Latin

● 1290 Hartmanni (gen) RigSB 25