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Dictionary of Medieval Names
from European Sources

Gumbert m. Old High German gund 'war, battle' + Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz.

The name of a 7th C saint.

France
Latin
1029x1033 Gumbertus (nom) CartStPC XII; 1065x1079 Gunbertus (nom) StVdM-II 663; 1378 Gumberti (gen) hanquetvol1 1071
Germany
Latin
1219 Gumpertus (nom) hennes-vol1 37
Cite as: S.L. Uckelman. "Gumbert". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Gumbert.