Everything points to the fact that when the location of Betanzos was moved from Betanzos O Vello to the old castro of Untia in the year 1219, there was already a church dedicated to Santiago, which we can see, however, is a factory from the 14th-15th centuries. In fact, inside the church there is the heraldic wolf of the Moscoso family, which indicates that it was built during the second marriage of Fernán Pérez de Andrade with Constanza de Moscoso at the end of the 14th century. The façade was "restored" in 1900 changing notably its original aspect, since it was moved from one tower to two.
Did you know that the columns of the naves of the church are crooked? Probably due to that restoration at the beginning of the 20th century which substantially modified the weight of the façade.
Inside, the Chapel of the Archdeacon stands out, an example of Renaissance art that is so rare in Galicia . The work was commissioned by Pedro de Ben, the archdeacon of Santiago who defended the interests of the cathedral in Rome (at the time of the splendour of Michelangelo and Rafael). This chapel can be considered as a Renaissance version of Andrade's tomb since both the funerary function and the search for eternal fame appear. The altarpiece by Cornelius de Holanda stands out, inaugurating the plateresque style in Galicia. To emphasize the profusion of images of saints among which we find, of course, San Roque.