Dictionary of Medieval Names
from European Sources

John-Jacob m. A compound of John and Jacob.

Italy
Latin
1527 Joannis Jacobi (gen) Rome1527 p. 90
Cite as: S.L. Uckelman. "John-Jacob". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/John-Jacob.