The capital of the Sierra de Francia Historical milestone · Miranda del Castañar, Sierra de Francia, Salamanca Alfonso IX of León made Miranda del Castañar a villa and concejo in 1213 and its administrative capital of the Sierra de Francia: for centuries most of the sierra's villages depended on its alfoz. In 1423 King John II granted the town to Pedro de Zúñiga, and in 1457 Henry IV created a county title in favour of his son, Diego López de Zúñiga, which consolidated the family's lordship over the territory. 1213 Photo: Weezerspain (CC BY 3.0) What to see and do in Miranda del Castañar