Dictionary of Medieval Names
from European Sources

Hartgilde f. Old Saxon hard, Old High German hart 'strong, hard' + Proto-Germanic *geldą 'reward, gift, money'.

France
Latin
c823 Ardegildis (nom) irminon-vol2 112, Palatiolum
Cite as: S.L. Uckelman. "Hartgilde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Hartgilde.