The Annals and the Histories · Hist. 2.100

Cæcina, having embraced Vitellius and received tokens of high distinction, left him, and sent a detachment of cavalry to occupy Cremona. It was followed by the veteran troops of the 4th, 10th, and 16th legions, by the 5th and 22nd legions, and the rear was brought up by the 21st (the Rapax) and the first Italian legion with the veteran troops of three British legions, and a chosen body of auxiliaries. After the departure of Cæcina, Valens sent a despatch to the army which had been under his own command with directions that it should wait for him on the road; such, he said, was his arrangement with Cæcina. Cæcina, however, being with the army in person, and consequently having greater influence, pretended that this plan had been changed, that so the gathering forces of the enemy might be met with their whole strength. Orders were therefore given to the legions to advance with all speed…

Cornelius Tacitus · trans. Church & Brodribb, 1876
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