The construction lasted for over two centuries (16C-18C), which explains its variety of styles (Gothic, Renaissance and Baroque). The western façade unfolds like a screen and its ornate décor is thought to be the work of Juan Gil de Hontañón. The northern porch is decorated with a delicate bas-relief depicting Jesus' entry into Jerusalem on Palm Sunday. The interior is notable for its fine vaulting, delicate cornices and slender pillars.