Rūta, Muslim stronghold of the Jalón Historical milestone · Rueda de Jalón, Valdejalón, Zaragoza Image of Rueda de Jalón, not of the place itself. The chronicler Ibn Hayyan recorded that in 934 Abd al-Rahman III besieged and took by force the stronghold of Ruta, in present-day Rueda de Jalón, during his campaign against rebel Zaragoza. The castle served as palace and refuge for the lords of the valley. 934 Photo: Ecelan (CC BY-SA 3.0) What to see and do in Rueda de Jalón