Hydatius or Idacius (c. 400 – c. 469), bishop of Aquae Flaviae in the Roman province of Gallaecia (almost certainly the modern Chaves, Portugal, in the modern district of Vila Real) was the author of a chronicle of his own times that provides us with our best evidence for the history of the Iberian Peninsula in the 5th century.
The Roman bridge over the Tâmega River in Chaves, Portugal, then Aquae Flaviae, was built by the stationed legionaries of the Legio VII Gemina at the time of Trajan.