Dictionary of Medieval Names
from European Sources

Gurhoiarn m. Old Breton uur, gur, Middle Welsh gwr 'warrior, man' + Old Breton (ho)iarn 'iron'.

France
Latin
834 Gurhoiarn (nom) CartRed III
Cite as: S.L. Uckelman. "Gurhoiarn". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Gurhoiarn.