Lucius m. Latin Lucius, a Roman praenomen deriving from Latin lux 'light'.
The name of a 2nd C martyr, a legendary 2nd C king of the Britons and saint, a 2nd C Roman emperor, a 3rd C Roman emperor, a 3rd C pope and saint, a 5th C marytr, and two 12th C popes. Wycliffite Bible (1395): Lucius.