The entrance to the north transept was known in the time of Alfonso X. as the Gate of the Twelve Apostles. It stands on a higher level than the floor of the church and is hence called Puerta Alta, or more often the Puerta de la Coroneria. The lower portion certainly, the whole probably, belongs to the thirteenth century. There is a great profusion of sculpture. On either side of the door are seen the figures of the twelve Apostles. The portal is enclosed within an ogival arch, on the archivolt of which are shown, successively, seraphim, cherubim, and the souls of the just rising from their graves. The upper part of the tympanum is adorned with the figures of Christ seated and attended by the Virgin and St. John. Below this is a composition of doubtful interpretation, the figures on one side seeming to illustrate the judgment of the wicked, those on the other side the establishment of the Dominicans and Franciscans in Castile. Higher up, the façade is pierced with two high pointed windows, and above these again by windows of several lights, with statues in niches. Ingress to the north transept is now obtained by a side entrance called the Puerta de la Pellejeria, a plateresque structure facing east, dating from the year 1516. Somewhat of the Gothic spirit may be detected in this sumptuous but not over-decorated portal. The detail is excellent, and the execution vigorous. With the figures of the Virgin, the Apostles, Saints, and Bishops are associated genii, _amorini_, and heraldic achievements in the true Renaissance style. Above the doorway is a group representing the martyrdom of the two Saints John; and over this a prelate, probably Rodriguez de Fonseca, is kneeling at the feet of the Madonna. The composition is flanked by the fine statues of Saints Peter and Paul; and on the sides of this façade are placed in niches the statues of St. John the Baptist and St. James, and St. John the Divine and St. Andrew.