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Dictionary of Medieval Names
from European Sources

Erchamger m. Old High German erchan 'sublime, special; chief; genuine, true' + Old High German, Old Saxon gēr 'spear'.

France
Latin
1164 Herkengeri (gen) CartNDdOurscamp C
Cite as: S.L. Uckelman. "Erchamger". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Erchamger.