Cilleros, villa de Sierra de Gata desde 1306 Village · Cilleros, Sierra de Gata, Cáceres 1,547 inhabitants (INE 2025), 481 m in altitude, 208.2 km². The name comes from the Latin cella ("granary"). Alfonso IX of León granted it a charter as a village of Salvaleón in 1227; it received the title of villa on 20 October 1306. Photo: Ramajo (CC BY 3.0) What to see and do in Cilleros