Publius Petronius is appointed by the Roman Emperor Gaius Julius Caesar Augustus Germanicus, better known to posterity as Caligula, as Governor (Legate) of Syria in CE 39, probably arriving in the country late in the year.
Little seems to be known about him before or after this governorship, but A.A. Barrett lists him as an example of the "excellent appointments" made by an emperor often dismissed as mentally unbalanced if not insane.
(Caligula; The Corruption of Power" Anthony A.Barrett, Guild Publishing 1989; p.240)