Titus Petronius Secundus (died 97 AD) was a prefect of the Roman imperial bodyguard, known as the Praetorian Guard, under emperor Domitian, from 94 until 96. Prior to becoming Praetorian prefect, Petronius had served as governor of Roman Egypt from 92 until 93.Guido Bastianini, "Lista dei prefetti d'Egitto dal 30a al 299p", Zeitschrift für Papyrologie und Epigraphik, 17 (1975), p. 278
While governor of Egypt, Petronius is attested as hearing the Colossi of Memnon sing, one of many ancient Romans known to have witnessed this phenomenon. = ILS 8759d
The role of Petronius in the conspiracy which led to the assassination of Domitian on September 18, 96 is unclear. Brian Jones notes that although "the support of the praetorian prefects would obviously be one of the primary concerns of any would-be imperial assassin, ancient sources are nowhere near as unanimous as their modern counterparts in claiming" that Petronius was among a number of government officials involved. Jones, The Emperor Domitian (London: Routledge, 1992), p. 194 Suetonius fails to implicate either Petronius or his colleague Titus Flavius Norbanus in his account of Domitian's death. Cassius Dio simply writes that "it was said that" Domitian's wife and both prefects were aware of the plot.Dio, Romaike Historia, 67.15.2 It is the much later author Eutropius who accuses Petronius of assisting Parthenius in killing Domitian.Eutropius, 8.1
Upon the accession of emperor Nerva, Petronius was dismissed as prefect. "They had been disloyal to one emperor," writes John Grainger, "and so their loyalty to the new one could not be assumed."Grainger, Nerva and the Roman succession crisis of AD 96-99 (London: Routledge, 2003), p. 41 Support for Domitian however remained strong in the army; they agitated for the deification of the late emperor.Suetonius, "Domitian", 23.1 Dissatisfaction with the state of affairs ultimately led to a rebellion in which the Praetorian Guard, led by Casperius Aelianus, laid siege to the Imperial Palace and forced Nerva to submit and hand over those responsible for Domitian's death. The revolt was successful, and Petronius was murdered by the Praetorians.Grainger, Nerva, p. 95
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