one of the thirty tyrants enumerated by Trebellius Pollio [see AUREOLUS], was governor of Pannonia at the period when Valerian set out upon his campaign against the Persians. Fearing lest he should excite jealousy by his popularity among the soldiers, he resolved at once to disown the authority of the weak and dissolute Gallienus, who, however, displayed upon this occasion unwonted promptitude and energy, for marching at once into Illyria, he encountered the usurper at Mursia, where the rebels were defeated, and their leader was slain, or, according to other accounts, stabbed himself, to avoid the torture he anticipated if captured alive. The relentless cruelty displayed by the conqueror upon this occasion towards all who had favoured the pretensions of Ingenuus has been adverted to in a former article. [GALLIENUS.] According to Pollio, the insurrection, headed by Ingenuus, broke out in the consulship of Fuscus (leg. Tuscus) and Bassus, that is, A. D. 258, the year in which Valerian took his departure for the East, but, according to Victor, not until intelligence had been received of the fatal result of the war against Sapor, that is, two or three years later. (Trebell. Poll. Trig. Tyrann.; Victor, de Caes. xxxiii.; Zonar. 12.24.) [W.R]