Dictionary of Medieval Names
from European Sources

Regulus m. Latin regulus 'petty king, prince', a dim. of Latin rex 'king'.

The name of a 4th C legendary Greek saint and an early Italian saint.

France
Latin
1378 Reguli (gen) hanquetvol1 515
Cite as: S.L. Uckelman. "Regulus". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Regulus.