Resettlement charter of Alfonso IX Historical milestone · Puebla de Lillo, La Montaña de Riaño, León Image of Puebla de Lillo, not of the place itself. In 1212 Alfonso IX granted Lillo a charter of repopulation and in 1379 a royal privilege exempted its residents from tolls and taxes, two documents that explain the historic autonomy of this high mountain council. 1212 Photo: Pablox (CC BY-SA 3.0) What to see and do in Puebla de Lillo