Dictionary of Medieval Names
from European Sources

Cassia f. Latin cassia 'cinnamon' or a derivative of the Roman gens name Cassius.

The example from Florence, 1366, is the name of a Tatar slave.

Italy
Latin
1366 Cassya (nom) Livi 75
Cite as: S.L. Uckelman. "Cassia". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Cassia.