The Annals and the Histories · Ann. 12.29

At this same time, Vannius, whom Drusus Caesar had made king of the Suevi, was driven from his kingdom. In the commencement of his reign he was renowned and popular with his countrymen; but subsequently, with long possession, he became a tyrant, and the enmity of neighbours, joined to intestine strife, was his ruin. Vibillius, king of the Hermunduri, and Vangio and Sido, sons of a sister of Vannius, led the movement. Claudius, though often entreated, declined to interpose by arms in the conflict of the barbarians, and simply promised Vannius a safe refuge in the event of his expulsion. He wrote instructions to Publius Atellius Hister, governor of Pannonia, that he was to have his legions, with some picked auxiliaries from the province itself, encamped on the riverbank, as a support to the conquered and a terror to the conqueror, who might otherwise, in the elation of success, disturb…

Cornelius Tacitus · trans. Church & Brodribb, 1876
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