the commander of the praetorian cohorts in the reign of Claudius, was allowed a seat in the senate as often as he accompanied the emperor thither. (D. C. 9.23.)
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.