The Alagón family, counts of Sástago Historical milestone · Sástago, Ribera Baja del Ebro, Zaragoza Image of Sástago, not of the place itself. Alfonso I handed Sástago to Artal de Alagón in 1133 and the family dominated the territory from the twelfth century. In 1511 Fernando the Catholic granted the lord of Sástago the title of count, which placed the lineage among the first nobility of Aragon. 1511 Photo: Juan Emilio Prades Bel (CC BY 4.0) What to see and do in Sástago