It is located in Los Llanos’ place, outside the walls of the medieval burg. There are some evidences of its presence here
since the end of the 13th century. The works started in 1635 and they were finished in 1654 by
Juan de Larrañaga. The construction was built entirely with bricks. The church has a simple Latin cross plan, a transept well marked and a straight apse. It’s covered by a barrel vault with lunette domes. In the transept it presents a dome over pendentives.The pictures which decorate its walls are a work by Juan Ros de San Miguel’s and they were created in 1905. The conventual complex was organized around a rectangular courtyard. In the church
the main altarpiece was made in 1967 by an architect from Pamplona,
Juan Barón de Guerendiain. The altarpiece is flanked by other two, situated on the sides of the transept and it is dedicated to the
Holy Trinity and to the Immaculate Conception. Both are Baroque, from the beginning of the 18th century.