5. Ummidius Quadratus, the son of No. 4, was induced by Lucilla to enter into a conspiracy against her brother Commodus, by whom he was put to death, A. D. 183. (Herodian. 1.8; Lamprid. Commod. 4; D. C. 72.4.)
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.