Outside walls Castrojeriz, the church began to build in the year 1214 by Berengaria available the Great, Queen of Castile and Leon, according to the canons of the Romanesque-Gothic, Gothic transition.

is a temple with a style that is transition between Romanesque and Gothic. In the fifteenth century suffered a reform that affected all its vaults, changed style Gothic. In the eighteenth century, they built the chapel of the Virgin del Manzano, the burial crypt of the counts, a new apse and the elevation of the tower, neoclassical style.

It houses interesting paintings and altarpieces. The altarpiece is Baroque eighteenth century paintings by the artist Anton Raphael Mengs.

And also has interesting graves s. XIV and pictures, among which that of Nuestra Señora del Manzano.