The first mention of Pías Historical milestone · Pías, Sanabria, Zamora Image of Pías, not of the place itself. A document of 1154 cites the place as uno villar que uocitant Pilas and in 1198 it already appears written as Pias; in 1222 Alfonso IX of León handed Pías and neighbouring Porto to the Order of Santiago, under whose jurisdiction they remained. 1154 Photo: Estevoaei (CC BY-SA 4.0) What to see and do in Pías