Reinbert m. Proto-Germanic *ragin 'counsel, might' + Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz.

Austria

Latin

● 763 Reginperto (nom) FRA-XXXL 1; 776 Reginperht (nom) ibid. 4; c925 Reginberti (gen) UrkStyria 16; 927 Regimberti (gen) ibid. 17; 928 Reginperht (nom) ibid. 18, Reginperhti (gen) ibid. 18; 930 Reginberti (gen) ibid. 19, Reginberto (abl) ibid. 19; 942 Reginperto (abl) ibid. 22, Reginpreht (nom) ibid. 22; c1070 Reginpreht (nom) ibid. 69; 1074x1087 Reimbertus (nom) ibid. 77; c1100 Reinbertus (nom) ibid. 89, Reinpertus (nom) ibid. 89; c1128 Rembertus (nom) ibid. 119b; 1237 Reinbertus (nom) hennes-vol1 96

France

Latin

● 657 Ragnobertus (nom) CartYonne1 VI; 658 Ragnobertus (nom) DCEL-2 CCCXXXIII; 814 Ragnebertus (nom) StVdM-II F34; c823 Ragambertus (nom) irminon-vol2 105, Palatiolum, Ragbertus (nom) ibid. 47, Raintbertus (nom) ibid. 11, Gaugiacum

Germany

Latin

● 802 Reginperht (nom) FRA-XXXL 7; 865 Rimberto (dat) HambUrk-vol1 XIX; 872 Reinberto (dat) ibid. XX; 888 Rimberti (gen) ibid. XXII, Rimpertus (nom) ibid. XXII; 1142 Regenbertus (nom) mairhofer IX, Regenperht (nom) ibid. III, Reginberti (gen) ibid. VIII, Reginberto (dat) ibid. VIII, Reginbertum (acc) ibid. I, Reginbertus (nom) ibid. I, Reinbertus (nom) ibid. II, Reinpertus (nom) ibid. V, Reinpreht (nom) ibid. I; 1144 Regenbertus (nom) ibid. XV; 1145 Regenbreht (nom) ibid. XIX, Reinpertus (nom) ibid. XIX; 1147 Regenbertus (nom) ibid. XXII, Reginbertus (nom) ibid. XXIV, Reinbertus (nom) ibid. XXVI; 1149 Regenberti (gen) ibid. XXXIII, Regenbertus (nom) ibid. XXXV, Reginberto (dat) ibid. XXXIII, Reginbertus (nom) ibid. XXXII; 1151 Regenbertus (nom) ibid. XXXVIII, Reginbertus (nom) ibid. XL, Reginbreht (nom) ibid. XXXVI

Early New High German

● 1400 Reimprechts (gen) mairhofer DCLXVII

Italy

Latin

● 828 Reginperht (nom) FRA-XXXL 13; 1189 Rambertus (nom) ChStBo1 I; 1198 Ramberto (abl) ibid. III