The Palacio de los Mier is located in the historic center of Carmona, just behind the Church of San Roque, and is also known as the Casona de los Díez Cossío, as it was ordered to be built by Francisco Díaz de Cossío and from there it was built. popular name.
The palace was built in masonry at the beginning of the 18th century in the "Madrid Baroque" style, which was what prevailed at that time, and The building has a lower part on its façade with three semicircular arches on Tuscan columns flanked by two larger towers height The most notable feature in the main body is an impressive coat of arms of those of Díaz, Cossío, Calderón and Mier, flanked by two huge relief sculptures and surrounded by two windows with access to a balcony.
Currently the building has been rehabilitated and converted into a Hotel, which is called: Hotel Arha Casona de Carmona,