Dictionary of Medieval Names
from European Sources

Bertegilde f. Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz + Proto-Germanic *geldą 'reward, gift, money'.

France
Latin
c823 Bertegildis (nom) irminon-vol2 78, Palatiolum
Cite as: S.L. Uckelman. "Bertegilde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Bertegilde.