Mentioned by Pliny the Elder[1] and by a local epigraphic source, the 2nd Century AD Ponte de Alcântara inscription, near Cáceres,[2] along with the other Lusitani tribes, their ethnic and Linguistic affiliation has not yet been fully determined.
It has been suggested that the Paesuri were of Thracian origin,[3] though to what extent they were celticized by their neighbors, the Lusitani, Gallaeci and Turduli Veteres, remains unclear.
Like their neighbours the Turduli Veteres and Gallaeci, the Paesuri did not fell under Carthaginian rule at the later 3rd Century BC and appear to have not taken part in the Second Punic War.
In 138-136 BC Consul Decimus Junius Brutus certainly devastated their lands during his punitive campaign against the Lusitani and the Turduli Veteres.
[4] Again the Paesuri suffered the same treatment in 61-60 BC, when they were forcibly incorporated into Hispania Ulterior province by the Propraetor Julius Caesar.