P. Umbrenus
one of Catiline's crew, had formerly carried on business in Gaul as a moneylender (negotiator, see Dict. of Ant. s. v. 2d ed.), and was therefore employed by Lentulus to persuade the ambassadors of the Allobroges to take part in the conspiracy, B. C. 63. (Sall. Cat. 40; Cic. Cat. 3.6.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.