 In this time the use of the Aljafería is documented like place of departure of the route that took to Cathedral of the Savior of Zaragoza, where the Aragonese monarchs were solemnly crowned and they swore the Fueros of Aragon.The chapel of San Martín takes advantage of the canvases of the northwest corner of the wall, to the point that one of its towers was used as sacristy and gave name to the courtyard that gives access to the Taifal enclosure.The factory, of Gothic-Mudéjar style, consists of two naves of three sections each, in origin orientated to the east and supported in two pillars with semicolumns attached in the half of the faces of the pillar, whose section is remembered in the quadrilobed that shelter the shield of arms of the King of Aragon in the spandrels of the portal, that is already of the first decade of the 15th century and in which we will stop later.