Dictionary of Medieval Names
from European Sources

Gisbern m. Proto-Germanic *gaisa, *gaiza 'arrow' + Old High German, Old Saxon bero 'bear'.

France
Latin
11thC Guisbernus (nom) StVdM-II 710; 1058 Gisbernus (nom) ibid. 694
Cite as: S.L. Uckelman. "Gisbern". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Gisbern.