7. Encouraged by this, Valens quickly moved his camp to Phrygia, and engaged the enemy near Nacolia, and the battle was doubtful till Agilo, the leader of Procopius's forces, betrayed his side by a sudden desertion of his ranks; and he was followed by many who, brandishing their javelins and their swords, crossed over to the emperor, bearing their standards and their shields reversed, which is the most manifest sign of defection.
8. When this unexpected event took place, Procopius abandoning all hope of safety, dismounted, and sought a hiding-place on foot in the groves and hills. He was followed by Florentius and the tribune Barchalbas, who having been known ever since the time of Constantine in all the terrible wars which had taken place, was now driven into treason by necessity not by inclination.
9. So when the greater part of the night was passed, as the moon, which had risen in the evening, by continuing her light till dawn increased their fear, Procopius, finding it impossible to escape, and having no resources, as is often the case in moments of extreme danger, began to blame his mournful and disastrous fortune. And being overwhelmed with care, he was on a sudden taken and bound by his own comrades, and, at daybreak led to the camp, and brought, silent and downcast, before the emperor. He was immediately beheaded; and his death put an end to the increasing disturbances of civil war. His fate resembled that of Perpenna of old, who, after Sertorius had been slain at a banquet, enjoyed the power for a short time, but was dragged out of the thicket where he was concealed, and brought to Pompey, by whose orders he was put to death.
10. Giving way to equal indignation against Florentius and Barchalbas, though they delivered up Procopius, he instantly ordered them also to be slain, without listening to reason. For if they had betrayed their legitimate prince, Justice herself would pronounce them justly slain; but if he whom they betrayed was a rebel and an enemy to the tranquillity of the state, as was alleged, then they ought to have received an ample reward for so memorable an action.
11. Procopius perished at the age of forty years and ten months. He was of a goodly appearance, tall, inclined to stoop, always looking on the ground as he walked, and in his reserved and melancholy manners like Crassus, whom Lucillius and Cicero record never to have smiled but once in his life; and what is very remarkable, as long as he lived he never shed blood.
X.
§ 1. About the same time, his kinsman Marcellus, an officer of the guard, who commanded the garrison of Nicæa, hearing of the treachery of the soldiers and the death of Procopius, attacked Serenianus, who was confined in the palace, unexpectedly at midnight, and put him to death. And his death was the safety of many.
2. For if he, a man of rude manners, bitter temper, and a love of injuring people, had survived Valens's victory, having also great influence with Valens from the similarity of his disposition and the proximity of their birthplaces, he would have studied the secret inclinations of a prince always inclined to cruelty, and would have shed the blood of many innocent persons.
3. Having killed him, Marcellus by a rapid march seized on Chalcedon, and with the aid of a few people, whom the lowness of their condition and despair urged to crime, obtained a shadow of authority which proved fatal to him, being deceived by two circumstances, because he thought that the three thousand Goths who, after their kings had been conciliated, had been sent to aid Procopius, who had prevailed on them to support him by pleading his relationship to Constantine, would at a small cost be easily won over to support him, and also because he was ignorant of what had happened in Illyricum.
4. While these alarming events were taking place, Equitius, having learnt by trustworthy reports from his scouts that the whole stress of the war was now to be found in Asia, passed through the Succi, and made a vigorous attempt to take Philippopolis, the ancient Eumolpias,[159] which was occupied by a garrison of the enemy. It was a city in a most favourable position, and likely to prove an obstacle to his approach if left in his rear, and if he, while conducting reinforcements to Valens (for he was not yet acquainted with what had happened at Nacolia), should be compelled to hasten to the district around Mount Hæmus.