A Romanesque-Gothic style church, built between the 12th and 14th centuries. It was located outside the old city walls, hence its name. The facade was modified in 1880. It has three portals. The main portico, which is the original, is preserved. The rose window is Gothic, from the 14th century, and the bell tower, from the 15th century, belongs to the degenerate Gothic. In the atrium, there is a cross from the late 15th century. It has medieval tombs in the naves and interesting polychrome stone images with the Annunciation. The altar is made of embossed silver. Also known as Santa María do Mar, as it was the old church of the seafarers’ guild. For a long time, it was customary for sailors and navigators to make their first visit to this church as soon as they returned from the sea, as a sign of gratitude for arriving safely at port. In 1441, it received the status of a collegiate church from the Archbishop of Compostela, Don Lope de Mendoza. Declared a Cultural Interest Site since 1931.