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In page Tacitus (emperor):

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Next he moved against the barbarian mercenaries that had been gathered by Aurelian to supplement Roman forces for his Eastern campaign.[citation needed] These mercenaries had plundered several towns in the Eastern Roman provinces after Aurelian had been murdered and the campaign cancelled.[1] His half-brother, the Praetorian Prefect Florian, and Tacitus himself won a victory against these tribes, among which were the Heruli, gaining the emperor the title Gothicus Maximus.[2]