Dictionary of Medieval Names
from European Sources

Guy-Geoffrey m. A compound of Guy and Geoffrey.

This compound, unusual for appearing so early, appears to have been used uniquely by William VIII, Duke of Aquitaine, who was born Guy-Geoffrey.

France
Latin
1067 Guido Gaufridus (nom) CartNDSaintes XI
Cite as: S.L. Uckelman. "Guy-Geoffrey". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Guy-Geoffrey.