Dictionary of Medieval Names
from European Sources

Conmarch m. Old Breton con, Middle Welsh kyn '(war)hound, elevated one' + Old Welsh, Old Breton march 'stallion, steed'.

France
Latin
833 Conmarc (nom) CartRed VI, Conmarch (nom) ibid. V
Cite as: S.L. Uckelman. "Conmarch". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Conmarch.