The name Lucronio or Logroño is first mentioned in a document toward the middle of the eleventh century. The date of its foundation is absolutely unknown, and all that can be said is that, once it had fallen into the hands of the monarchs of Castile (1076), it grew rapidly in importance, out-shining the other three Rioja cities. It is seated on the southern banks of the Ebro in the most fertile part of the whole region, and enjoys a delightful climate. Since 1850 it has been raised to the dignity of an episcopal see. As regards the architectural remains of the four cities in the Upper Rioja valley, they are similar to those of Navarra, properly speaking, though not so pure in their general lines. In other words, they belong to the decadent period of Gothic art. Moreover, they have one and all been spoiled by ingenious, though dreadful mixtures of plateresque, Renaissance, and grotesque decorative details, and consequently the real remains of the old twelfth and thirteenth century Gothic and Romanesque constructions are difficult to trace. _Nájera._--Absolutely nothing remains of the old Romanesque church built by the king Don Garcia. A new edifice of decadent Gothic, mixed with Renaissance details, and dating from the fifteenth century, stands to-day; it contains a magnificent series of choir stalls of excellent workmanship, and similar to those of Burgos. The cloister, in spite of the Arab-looking geometrical tracery of the ogival arches, is both light and elegant. This cathedral was at one time used as the pantheon of the kings of Navarra. About ten elaborate marble tombs still lie at the foot of the building. _Santo Domingo de la Calzada._--The primitive ground-plan of the cathedral has been preserved, a nave and two aisles showing Romanesque strength in the lower and ogival lightness in the upper tiers. But otherwise nothing reminds one of a twelfth or thirteenth century church. The cloister, of the sixteenth century, is a handsome plateresque-Renaissance edifice, rather small, severe, and cold. The great merit of this church lies in the sepulchral tombs in the different chapels, all of which were executed toward the end of the fifteenth and during the first years of the seventeenth centuries, and any one wishing to form for himself an idea of this particular branch of Spanish monumental art must not fail to examine such sepulchres as those of Carranza, Fernando Alfonso, etc. [Illustration: CLOISTER OF NÁJERA CATHEDRAL] The effigy of the patron saint (Santo Domingo) is of painted wood clothed in rich silver robes, which form a striking antithesis to the saint's humble and modest life. The chapel where the latter lies is closed by a gilded iron _reja_ of plateresque workmanship. The saint's body lies in a simple marble sepulchre, said to have been carved by Santo Domingo himself, who was both an architect and a sculptor. The truth of this version is, however, doubtful.