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Dictionary of Medieval Names
from European Sources

Volker m. Old English folc, Old High German folk 'people, nation, tribe, race' + Old English here, Old High German heri 'host, army'.

The Netherlands
Latin
1277 volkerus (nom) GesOIJ-1 p. 296
Cite as: S.L. Uckelman. "Volker". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Volker.