Charter of Ribas del Sil Historical milestone · Palacios del Sil, El Bierzo, León Image of Palacios del Sil, not of the place itself. In 1225 Alfonso IX of León granted its own fuero (charter of local law) to the council, then called Riba de Sil. The district survived throughout the Early Modern period as the concejo of Ribas del Sil de Arriba, within the province of León. 1225 Photo: Rodelar (CC BY-SA 4.0) What to see and do in Palacios del Sil