But Leon, capital of the ancient kingdom, was doomed before long to feel the bitterness of abandonment. The Castilian kings followed the retreat southward of the Moorish armies, and the history of the capital of Leon, which, during the thirteenth century, had been the history of the little kingdom, soon became confined within the limits of her cathedral walls. Burgos, a mighty rival, soon overshadowed her. The time came when the Bishop of Leon was merely a suffragan of the Archbishop of Burgos, and her kings had moved their court south to Seville. The city of Leon was lost in the union of the two kingdoms. The fortunes of the Cathedral have been varied and her reverses great. Her architects risked a great deal and the disasters entailed were proportionate. Though belonging preëminently in style to the glorious thirteenth century, her building continued almost uninterruptedly throughout the fourteenth. We have in succession Maestro Enrique, Pedro Cebrian, Simon, Guillen de Rodan, Alonzo Valencia, Pedro de Medina, and Juan de Badajoz, working on her walls and towers with a magnificent recklessness which was shortly to meet its punishment. Although Bishop Gonzalez in 1303 declared the work, "thanks be to God, completed," it was but started. The south façade was completed in the sixteenth century, but as early as 1630 the light fabric began to tremble, then the vaulting of the crossing collapsed and was replaced by a more magnificent dome. Many years of mutilations and disasters succeeded. The south front was entirely taken down and rebuilt, the vaulting of aisles fell, great portions of the main western façade, and ornamentation here and there was disfigured or destroyed by the later alterations in overconfident and decadent times, until, in the middle of the eighteenth century, very considerable portions of the original rash and exquisite fabric were practically ruined. There came, however, an awakening to the outrages which had been committed, and from the middle of the nineteenth century to the present day, the work of putting back the stones in their original forms and places has steadily advanced to the honor of Leon andglory of Spain, until Santa Maria de Regla at last stands once more in the full pristine lightness of her original beauty.