Later Italian spellings typically omit the initial t.

Similarly, in French, Aubert can be a form of this name or of Albert; in many cases it is impossible to tell which is the root. The variant Autbert can also be a form of Altbert

France

Latin

● 658 Adebertus (nom) DCEL-2 CCCXXXIII; 745 Odberti (gen) CartStBert 1; c823 Autbertus (nom) irminon-vol2 14, Gaugiacum, Otbertus (nom) ibid. 19, Ved; 989 Otberti (gen) CartSavII 105, Otbertus (nom) ibid. 105; 1018x1032 Odbertus (nom) StVdM-II 666; 1029x1033 Otbertus (nom) CartStPC XII; c1040 Autberto (abl) StVdM-II 671; 1044 Autbertus (nom) ibid. 659; 1048 Obertus (nom) ibid. 737; c1050 Odbertus (nom) ibid. 675; 1067 Othberti (gen) CartNDSaintes XII; 1131 Audeberti (gen) ibid. XXII, Audebertus (nom) ibid. XXIII; 1138x62 Obertus (nom) clairvaux-12thc 71; 1147 Obertus (nom) ibid. 16; 1163–64 Obertus (nom) ibid. 107; 1164 Obertus (nom) ibid. 120; 1179 Oberto (abl) ibid. 179; 1188 Obertus (nom) CartNDdOurscamp XCIV; 1274 Obertus (nom) RHF-VIII p. 60; 1378 Audeberti (gen) hanquetvol1 1303, Oberto (dat) ibid. 1438

Middle French

● 1418 Audebert DdB1418 p. 200, HGParis p. 376; 1423 Audebert favier 11

Germany

Latin

● 828 Otberti (gen) OrkGZ no. 29; 1098 Oberti (gen) quix-vol1 25; 1100 Otberto (nom) ibid. 78; 1103 Obertus (nom) ibid. 62; 1108 Oberto (abl) ibid. 85; 1211 Opertus (nom) hennes-vol1 11; 1218 Obertus (nom) ibid. 30

Italy

Latin

● 1164 Obertum (acc) Livi p. 41; 1265x1339 Oberti (gen) BBC-Berg 178; 1268 Obertus (nom) ibid. p. XLI; 1276 Obertus (nom) ibid. p. XLII; 1280 Obertus (nom) ibid. p. XLIII; 1282 Obertus (nom) ibid. p. XLVII; 1284 Obertus (nom) ibid. p. XLIII; 1376 Obertho (abl) DouGen1 p. 29, Oberti (gen) ibid. p. 225, Oberto (abl) ibid. p. 23; 1464 Obertus (nom) CUP-III-I CCXXXI

◑ 1282 Obertino (abl) DSS5-1-4 I