Postumius Suagrus or Suagrius (fl. 3rd century AD) was a Roman senator.
Biography Postumius Suagrus was a member of the third century gens Postumii, which was not descended from the Republican family of the same name. He may have served as suffect consul sometime prior to AD 275.Mennen, pg. 122 In that year, he was appointed Praefectus urbi of Rome.Martindale & Jones, pg. 859
Sources Martindale, J. R.; Jones, A. H. M, The Prosopography of the Later Roman Empire, Vol. I AD 260–395, Cambridge University Press (1971) Mennen, Inge, Power and Status in the Roman Empire, AD 193-284 (2011)
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