20. Accordingly, a few days later, the affair was rigorously investigated; Mamertinus, the prefect of the prætorium, sitting as judge; and Nigrinus, as the cause of the war, was burnt alive. After him, Romulus and Sabostius, men who had held high office, being convicted of having sown discord in the empire without any regard to the consequences, were beheaded; and all the rest escaped unpunished, as men who had been driven to hostilities by necessity, and not by their own inclination; this being the decision of the merciful and clement emperor, after a full consideration of justice. These things, however, happened some time afterwards. 21. But Julian, who was still at Nissa, was occupied in the graver cases, being full of fears on both sides. For he was apprehensive lest the defiles of the Julian Alps might be seized and barred against him by some sudden onset of the troops who had been shut up in Aquileia; by which he might lose the provinces beyond, and the supplies which he was daily expecting from that quarter. 22. And he also greatly feared the power of the East; hearing that the soldiers who were scattered over Thrace had been suddenly collected together to act against him, and were advancing towards the frontiers of the Succi, under command of Count Marcianus. But, devising measures suitable to this mass of pressing anxieties, he quickly assembled his Illyrian army, long inured to war, and eager to renew its martial labours under a warlike chief. 23. Nor even at this critical moment did he forget the interests of individuals; but devoted some time to hearing contested causes, especially those concerning municipal bodies, in whose favour he was too partial, so that he raised several persons who did not deserve such honour to public offices. 24. It was here that he found Symmachus and Maximus, two eminent senators, who had been sent by the nobles as envoys to Constantius, and had returned again. He promoted them with great honour; so that, preferring them to others more deserving, he made Maximus prefect of the eternal city, in order to gratify Rufinus Vulcatius, whose nephew he was. Under his administration the city enjoyed great plenty, and there was an end to the complaints of the common people, which had been so frequent. 25. Afterwards, in order to add security to those of his affairs which were still unsettled, and encourage the confidence of the loyal, he raised Mamertinus, the prefect of the prætorium in Illyricum, and Nevitta to the consulship; though he had so lately assailed the memory of Constantine as the person who had set the example of thus promoting low-born barbarians. XIII.