9. P. Postumius, a friend of M. Marcellus, who was murdered at Athens in B. C. 45. (Servius, ap. Cic. Fam. 4.12.2.)
William Smith. A Dictionary of Greek and Roman biography and mythology. London. John Murray: printed by Spottiswoode and Co., New-Street Square and Parliament Street. In the article on Soranus, we find: "at this present time (1848)" and this date seems to reflect the dates of works cited. 1873 - probably the printing date.