The cathedral, dedicated to S. Antholin, stands in a desolate-looking open space on the edge of the hill which slopes down to the river Carrion on the west side of the city. Cean Bermudez says that it was commenced in A.D. 1321,[62] and completed in the beginning of the sixteenth century.[63] An inscription on the door from the cloister to the church has the date A.D. 1535, and the enclosure of the choir is of A.D. 1534. These dates appear to be fairly correct; but the work having been so long in progress, it may, I think, be assumed that the ground-plan only is of the earliest date, and that the greater part of the architectural detail belongs more probably to the fifteenth than to the fourteenth century. This is quite consistent with the evidence afforded by the building, for the detail of the design is of very poor character throughout, and the window tracery is generally of inferior and rather late flamboyant style. The triforium is well developed, having large traceried openings; and the church is groined throughout. In the eastern part of the chevet the window tracery has an early character, but the mouldings belie this effect; and, if I may judge by them, none of it is earlier than circa A.D. 1350-1370. The plan of the chevet is probably old, but all its details, save those of the piers between the chapels, have been modernized. The thin spandrels of the vaulting in the apse of the choir are pierced with cusped circles, a device occasionally seen in French churches. It will be seen, therefore, that there is little to praise here, save the grand scale upon which the work has been done. The nave is 36 feet 8 inches from centre to centre of the columns, whilst each aisle is no less than 31 feet 2 inches. The relative proportions are bad, but owing to the arrangement of the Coro in the nave there is not much opportunity of seeing this, and the internal view of the aisles, owing to their width and to the very massive character of the nave columns, is extremely fine. The nave is of five bays in length, the two eastern bays being occupied by the Coro. There is an altar against the western screen of the Coro, in front of which are some steps leading down to a well, said to be that of St. Antholin, the tutelar saint. The whole of the stalls are old, and fine of their kind; they are mainly the work of El Maestro Centellas, a Valencian, who contracted to execute them about the year 1410,[64] but they are not in their old place, for in A.D. 1518-1519 Pedro de Guadalupe agreed to move them from the old choir into the new choir for the sum of fifteen hundred maravedis, and to execute twenty additional stalls for the sum of two thousand maravedis each.[65] At the same time the Retablo was moved forward and enlarged to fit its new position by one Pedro Manso, at a cost of two hundred ducats; whilst Juan de Valmeseda executed the statues of the Blessed Virgin Mary, St. John, and the Crucifixion for it for one hundred ducats.[66]