Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
Against this crafty device the emperor aided his wavering cause by a clever expedient; for he urged the ex-consul Arbitio, who had long been in retirement, to come to him, in order that respect due to one of Constantine’s generals might calm the savage spirits of the rebels; and so it turned out.
For Arbitio, who was older than the rest and of higher rank, showing to many who were inclined to rebellion his venerable gray hair, called Procopius a public brigand, while he pleaded with the soldiers who had followed the usurper’s delusion as with his children and comrades in his former labours; and he begged them rather to obey him, as a parent who was known for his successful campaigns, than a profligate wretch who was already on the point of being deserted and was approaching his fall.
Gomoarius,
Fired with eagerness at this, Valens marched on to Phrygia, and the two sides had already joined battle near Nacolia, when Agilo at the critical point in the contest turned traitor by suddenly going over to the enemy; then many others followed him who were already brandishing their pikes and swords, and deserted to the emperor with their standards and with their shields reversed, which is the most evident sign of defection.
By this sight, unexpected by all, Procopius was bereft of every aid to safety; so he took to flight and sought a hiding-place in the surrounding woods and mountains, followed by Florentius and the tribune Barchalba, who from the time of Constantius had gained fame in the fiercest wars, and had been led to treason by necessity, not by inclination.
The greater part of the night had passed. The moon, brightly shining from its evening rise until dawn, increased the fear of Procopius; and since on all sides the opportunity for escape was cut off and he was completely at a loss, he began, as is usual in extreme necessity, to rail at Fortune as cruel and oppressive; and so, overwhelmed as he was by many anxieties, he was suddenly tightly bound by his companions and at daybreak was taken to the camp and handed over to the emperor, silent and terror- stricken. He was at once beheaded, and so put an