Palace of los Duques de Riánsares Historical milestone · Tarancón, La Mancha Conquense, Cuenca Nineteenth-century palace of Tuscan columns linked to Fernando Muñoz, duke of Riánsares and husband of the regent queen María Cristina de Borbón. Restored in the twentieth century, it today houses the town hall of Tarancón. siglo XIX Photo: Malopez 21 (CC BY-SA 4.0) What to see and do in Tarancón