Dictionary of Medieval Names
from European Sources

Gladwin m. Old English glæd 'shining, bright; cheerful, glad' + Old English wine 'friend'.

England
Latin
1181 Gladewine (nom) StPaulDom p. 116, Gladewinus (nom) ibid. p. 117; 1222 Gladewinus (nom) ibid. p. 30
Cite as: S.L. Uckelman. "Gladwin". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Gladwin.