Umbrena gens
The gens Umbrena was an obscure plebeian family at ancient Rome. Hardly any members of this gens appear in history, of whom the best known may have been Publius Umbrenus, one of the Catilinian conspirators in 63 BC. A few others are known from inscriptions. Origin. The nomen "Umbrenus" belongs to a class of gentilicia formed using the suffix ', usually derived from other nomina, or cognomina ending in '. The surname "Umbrinus", in turn, is derived from "Umber", an inhabitant of Umbria.