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Dictionary of Medieval Names
from European Sources

Giselfrid m. Old High German gīsal 'pledge, hostage' + Old High German fridu, Old Saxon frithu 'peace'.

France
Latin
814 Gisilfredus (nom) StVdM-II A4
Cite as: S.L. Uckelman. "Giselfrid". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2021, no. 1. http://dmnes.org/2021/1/name/Giselfrid.