Book 15
5.16
But he was prevented by Laniogaisus, at that time a tribune, whom I have earlier stated to have been the sole witness of Constans’ death, while he was serving as a subaltern.See Index II, s.v. candidatus. He assured Silvanus that the Franks, whose fellow-countryman he was, would kill him or on receipt of a bribe betray him. So Silvanus, seeing no safety under present conditions, was driven to extreme measures, and having gradually spoken more boldly with the chief officers, he aroused them by the greatness of the reward he promised; then as a temporary expedient he tore the purple decorations from the standards of the cohorts and the companies, and so mounted to the imperial dignity.
5.17
And while this was going on in Gaul, as the day was already drawing to its close, an unexpected messenger reached Milan, openly declaring that Silvanus, aiming higher than the command of the infantry, had won over his army and risen to imperial eminence.