Dictionary of Medieval Names
from European Sources

Theodemar m. Gothic þiuda 'people, folk' + Old High German, Old Saxon māri from Proto-Germanic *mērijaz 'famous'.

The name of a 5th C king of the Ostrogoths, a 5th C Frankish king, and a 6th C king of Galicia.

The German vernacular form Dyetmar is witnessed between 1074 and 1087 in the place name Dyetmarsdorf (UrkStyr 77).

Austria
Latin
898 Theotmari (gen) UrkStyria 12; 927 Diotmar (nom) ibid. 17; 928 Diotmar (nom) ibid. 18; 930 Diotmar (nom) ibid. 19; 935 Diotmari (gen) ibid. 21; c1030 Tietmari (gen) ibid. 46; 1074x1087 Dietmar (nom) ibid. 77, Dietmarus (nom) ibid. 77; c1075 Dietmar (nom) ibid. 78, Dietmari (gen) ibid. 78; c1100 Dietmar (nom) ibid. 89; c12thC Dietmar (nom) GCSStFl p. 193; 1103 Diethmar (nom) UrkStyria 95; c1120 Dietmar (nom) ibid. 105; c1128 Dietmar (nom) ibid. 120; c1130 Dietimarus (nom) ibid. 122a
Czech Republic
Latin
1358 Dyethmari (gen) chlumecky 272, p. 32
Middle High German
1318 Dytmars (gen) Rössler1 45
Estonia
Middle Low German
1364 Dethmar BbRT p. 334; 1414 Dethmar ibid. p. 347; 1420 Dethmar ibid. p. 349
1428 Tymme BbRT p. 352; 1432 Tymme ibid. p. 356
France
Latin
c823 Teutmarus (nom) irminon-vol2 9, CE
Germany
Latin
822x875 Thiadmaro (abl) TradCorb §156, Thiadmarus (nom) ibid. §164, Thiatmaro (abl) ibid. §219, Thiatmarus (nom) ibid. §40, Tiadmaro (abl) ibid. §149, Tiadmarus (nom) ibid. §126; 888 Theotmari (gen) HambUrk-vol1 XXII; 891 Theothmari (gen) UrkStyria 10; 904 Theotmari (gen) ibid. 13; 925 Diotmar (nom) ibid. 14; c925 Diotmar (nom) ibid. 15; 1036 Tietmari (gen) ibid. 49, Tietmarus (nom) ibid. 49; 1130 Thietmarus (nom) ibid. 121; 1145 Dietmar (nom) mairhofer XIX; 1149 Diethmar (nom) ibid. XXXII; 1210 Dietmari (gen) hennes-vol1 10, Thietmaro (abl) CDL-1.1.1 IV; 1211 Dietmarus (nom) hennes-vol1 11; 1255 Dymari (gen) ibid. 157; 1259 Tetmarus (nom) CDL-1.1.1 XXXI; 1322 Dietmari (gen) SMM p. 158; 1342 Dethmarus (nom) UrkHan 6; 1401 dyetmaro (dat) HD1401 no. 17
Latvia
Latin
1296 Tethmaro (dat) RigSB 255; 1302 Dethmaro (dat) ibid. 197; 1303 Detmarus (nom) ibid. 373
1291 Timmoni (dat) RigSB 392; 1299 Thinnoni (dat) ibid. 367; 1300 Thimmoni (dat) ibid. 415, Timmoni (dat) ibid. 422
Poland
Middle High German
1336 Ditmars (gen) SBGlatzer p. 4
Cite as: S.L. Uckelman. "Theodemar". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Theodemar.