The interior of this church has a relatively simple style. The Gothic nave dates back to the 14C. With the exception of the Baroque retable, the only decoration can be found in the side chapels (tombs decorated with coats of arms). To the side of the church, note the two 15C towers that still have machicolations: the Torre de los Plata (Silver Tower) and the Casa del Sol, the latter named after the elegant coat of arms of the Solís family, sculpted above the portal.