It is an old abbey temple, which is still popularly known as the abbey. The current building is the result of numerous modifications that have altered its primitive structure, both in plan and elevation, but it still retains important remains of its Romanesque character, especially the façade and the triumphal arch. The façade is made up of three archivolts with mouldings and a polylobed interior arch, which are supported by capitals carved with animal and plant themes. Both the exterior moulding and the line of imposts are decorated with checkerboard. Inside, the triumphal arch appears very high and pointed, with a zigzag carved archivolt. The capitals repeat the motifs of the façade. On both sides there are two small chapels that now act more as niches. The successive modifications have respected the dimensions of the nave, which with its 17 m in length make this church the largest in all of Gijón’s Romanesque. And once again, apart from the evident historical and artistic values of the temple, we have before us a beautiful natural corner.