The Annals and the Histories · Ann. 11.18

It was during the same period that the Chauci, free, as it happened, from dissension at home and emboldened by the death of Sanquinius, made, while Corbulo was on his way, an inroad into Lower Germany, under the leadership of Gannascus. This man was of the tribe of the Canninefates, had served long as our auxiliary, had then deserted, and, getting some light vessels, had made piratical descents specially on the coast of Gaul, inhabited, he knew, by a wealthy and unwarlike population. Corbulo meanwhile entered the province with careful preparation and soon winning a renown of which that campaign was the beginning, he brought his triremes up the channel of the Rhine and the rest of his vessels up the estuaries and canals to which they were adapted. Having sunk the enemy's flotilla, driven out Gannascus, and brought everything into good order, he restored the discipline of former days…

Cornelius Tacitus · trans. Church & Brodribb, 1876
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