The monastery was built by the Augustinians and completed in 1560. The showy refinement of the church façade, epitomising the Plateresque style, contrasts with the roughness of the architecture, barely softened by a small bell cote. The superb Claustro de los Naranjos (Cloister of the Orange Trees) still contains some fine paintings and a frieze with illuminated psalms running alongside the cells. A cross outside the atrium, just across from the church, illustrates the Tequitqui style of naive religious art made by indigenous artists.