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Dictionary of Medieval Names
from European Sources

Theodebert m. Gothic þiuda 'people, folk' + Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz.

The name of a 6th C Frankish king, a 7th C Frankish king, and a 13th C saint.

Austria
Latin
c1128 Diepreht (nom) UrkStyria 118a
Belgium
Latin
1106 Tetberto (abl) CartStBert 2; 1116 Tetberti (gen) ibid. 7
France
Latin
658 Teoberctus (nom) DCEL-2 CCCXXXI; 814 Teobertus (nom) StVdM-II G7, Teutebertus (nom) ibid. H4; c823 Teutbardus (nom) irminon-vol2 27, Palatiolum, Teutbertus (nom) ibid. 19, Palatiolum; 10thC Teotbert (gen) St-Bernard-Romans no. 114; 909 Teutberto (nom) ibid. no. 77; 952 Teodbert (abl) ibid. no. 108; 1018x1032 Teubertus (nom) StVdM-II 666; c1050 Teutberto (abl) ibid. 672; 1096 Teotberti (gen) St-Bernard-Romans 138
Germany
Latin
954 Thietpraht (nom) UrkStyria 23, Thietpreht (nom) ibid. 23; 961 Diotpert (abl) ibid. 24, Thietpreht (nom) ibid. 24
Cite as: S.L. Uckelman. "Theodebert". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Theodebert.