Monasterio de San Pedro de Siresa
The area's most important monument, the 9th-century retreat of Monasterio de San Pedro de Siresa presides over the village of Siresa, 2 km (1 mile) north of Hecho. Only the 11th-century church remains, but it is a marvelous example of Romanesque architecture. Cheso, a medieval Aragonese dialect descended from the Latin spoken by the Siresa monks, is thought to be the closest to Latin of all Romance languages and dialects. It has been kept alive in the Hecho Valley, especially in the works of local poet Veremundo Méndez Coarasa.
