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 2016, no. 4. http://dmnes.org/2016/4/name/Erchamger.