Today’s church is a rectangular single nave construction, built on the walls of the original building. The lower part of the walls are Romanesque and you can still seen in them the holes of the windows and doors, paintings with geometric patterns and crosses, or areas that were formerly occupied by columns attached to the walls and topped with big capitals. We can see that the current height of the church is, in some areas, three times the height of the lateral naves of the Romanesque building.
One of the best preserved elements of the Romanesque building is the western front. Hidden until the summer of 1993, it’s one of the best and oldest examples of cluniac Romanesque on the Iberian Peninsula. The columns are made out of marble, a very rare example in the peninsular Romanesque. Those are elements of roman times, probably belonging to a roman temple from the second century, which were then reused in Romanesque period. Except for one in a one piece, everything is composed by elements belonging to different columns that were adjusted later in the eleventh century.

The columns are topped with some amazing capitals; so great, that before them we can meet the great master sculptor who originated the palentino Romanesque. The capitals represent elements that were very familiar to the medieval man.
The one on the right, starting with the exterior one, represents one of the Gospel’s teachings about human beings and their behavior: the Lord will take care of to those who give a good fruit, in the same way the vinedresser does with the good vine; and the ones that don’t, will be pulled out and thrown to the bonfire…