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Gaius Petronius was a Roman senator, who was active during the Principate. He was suffect consul from September through December AD 25, succeeding Cossus Cornelius Lentulus.[1] Bartolomeo Borghesi has argued that Gaius Petronius is the same person as Gaius Petronius Umbrinus, who is mentioned in an inscription from Rome as curator locorum publicorum iudicandorum;[2] this is unlikely since all known Petronii in the first half of the first century belong to the branch of the Petronii lacking a cognomen.

Petronius was grandson of Publius Petronius Turpilianus, one of the tresviri monetalis, and probably grandson of Publius Petronius, prefect of Egypt. Publius Petronius, suffect consul in 19, was probably his older brother.[3]


  1. ^ Alison E. Cooley, The Cambridge Manual of Latin Epigraphy (Cambridge: University Press, 2012), p. 459
  2. ^ CIL VI, 1266; Borghesi, Œuvres complètes de Bartolomeo Borghesi (1860), III p. 343
  3. ^ Rudolf Hanslik, "Petronius 22", Realencyclopädie der classischen Altertumswissenschaft (Stuttgart, 1937) Vol. 19,1, Col. 1199
Political offices
Preceded by
Cossus Cornelius Lentulus,
and Marcus Asinius Agrippa

as ordinary consuls
Suffect consul of the Roman Empire
with Marcus Asinius Agrippa
Succeeded by
Gnaeus Cornelius Lentulus Gaetulicus,
and Gaius Calvisius Sabinus

as Ordinary consuls