The interior of this church has a relatively simple style. The gothic nave dates back to the 14C. Except for the baroque retable, the only decoration comes from the lateral chapels (tombs decorated with coats of arms). Around the church on the northern flank, you can see two 15C towers that still have machicolations: the Torre de la Plata (Silver Tower) and Casa del Sol, which is named after the elegant coat of arms of the Solís family, sculpted above the portal.