Ammianus Marcellinus Res Gestae 16.12.70

[70] In short, there are extant statements filed among the public records of this emperor, in which ostentatious reports are given, of his boasting and exalting himself to the sky. ¹ When this battle was fought near Strasburg, although he was distant forty days’ march, in his description of the fight he falsely asserts that he arranged the order of battle, and stood among the standard-bearers, and drove the barbarians headlong, and that Chonodomarius was brought to him, saying nothing (Oh, shameful indignity!) of the glorious deeds of Julian, which he would have buried in oblivion, had not fame been unable to suppress his splendid exploits, however much many people would have obscured them.