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).
When Julian learned of this, being still at Naessus, and fearing no trouble from behind him, he recalled reading and hearing that this city had indeed oftentimes been besieged, but yet had never been razed nor had ever surrendered. Therefore
Hence he ordered Jovinus, a commander of the horse, who was coming over the Alps and had entered Noricum, to return with speed, in order to quench in any way he could the fire that had broken out. Also, that nothing might be wanting, he gave orders that all soldiers who followed the court or the standards[*](That is, household troops or legions serving in the field.) should be detained as they passed through that same town,[*](Namely, Naessus.) in order to give help according to their powers.
These arrangements made, he himself, learning not long afterwards of the death of Constantius, hastily traversed Thrace and entered Constantinople. And being often advised that the said siege would be long rather than formidable, he assigned Immo with his other officers to that task and then ordered Jovinus to go and attend to other matters of greater urgency.
And so when Aquileia was surrounded with a double line of shields,[*](Cf. xix. 2, 2.) it was thought best in the unanimous opinion of the generals to try, partly by threats and partly by fair words, to induce the defenders to surrender; but when after much debate to and fro their obstinacy became immensely greater, the conference ended without result.
And since now nothing was looked for except battle, both sides refreshed themselves with food and sleep; at daybreak the sound of the trumpets roused them to slay one another, and raising a shout they rushed