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Dictionary of Medieval Names
from European Sources

Helmburg u. Old High German, Old Saxon helm 'helmet' + Old High German burg 'castle, city, stronghold'.

The prototheme burg is used in both masculine and feminine names, so absence of any independent information such as Latin inflection or an explicit relational marker, it is impossible to tell the gender of the name.

Germany
Latin
822x875 Helmburg (nom) TradCorb §28
Cite as: S.L. Uckelman. "Helmburg". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Helmburg.