Pilas, la Pilias de Plinio Historical milestone · Pilas, Aljarafe, Seville Image of Pilas, not of the place itself. The municipality is mentioned by Pliny the Elder in Roman times under the name Pilias. Alfonso X renamed the settlement in 1248, and by 1594 it was part of the kingdom of Seville with 176 households. Photo: CarlosVdeHabsburgo (CC BY-SA 4.0) What to see and do in Pilas