Dictionary of Medieval Names
from European Sources

Frotlinde f. Old Frisian, Old Saxon frōd, Old High German fruot 'wise' + Proto-Germanic *linþaz 'gentle, sweet, mild'.

France
Latin
c823 Frotlindis (nom) irminon-vol2 66
Cite as: S.L. Uckelman. "Frotlinde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Frotlinde.