Ammianus Marcellinus Res Gestae 30.10.1

[1] After the last invocation of the emperor ¹ his ² body was prepared for burial, in order to be sent to Constantinople and interred among the remains of the deified rulers. Meanwhile the campaign that was approaching was suspended, and an uncertain outcome of the situation was feared, because of the cohorts serving in Gaul, which were not always of devoted loyalty to legitimate emperors, and regarded themselves as arbiters of the imperial power; ³ and it was suspected that they might take the opportunity to venture on some new step; and this fact added some hopes of attempting a revolution—that Gratianus was still at Trier (where his father, when he was on the point of beginning his march, had arranged for him to stay) and even then knew nothing of what had happened.