Against the wall a little further eastwards is an altar-tomb of great interest. The marble slab at the top has at one end a bas-relief representing a grove, and in it a lion walking away from a man, who kneels in an attitude of supplication with his back to the lion, while between the two figures is a bird flying toward the man. Tradition says that this is the tomb of an Irish prince who brought back from Palestine a lion that had there become attached to him, but a story of this kind was popular in mediaeval romances,[77] and the tradition, though of some age, is not, perhaps, very probable. It has been well suggested that the sculpture represents deliverance from a lion in answer to prayer; but as it is possibly only part of a larger composition, its full meaning must still be doubtful.[78] The work is rather Flemish in character, and may be assigned to the fourteenth century, with which date the costume of the man agrees. Thus the slab is considerably older than the wall to which it is now affixed, and it is doubtless older than the lower part of the tomb itself, which may be of the same date as the aisle. There is a black-letter inscription upon the front of the structure, but it is unfortunately quite illegible. An entry in the Chapter Acts[79] indicates that this tomb was used as a money-table in business transactions between the mediaeval townsmen. The windows have their sides moulded, but somewhat clumsily. That above the font contains the only mediaeval glass in the Cathedral, a collection of fragments chiefly of the fourteenth century. Most of these were originally in the great window of the choir, where, being in the upper tracery, they had escaped the violence of Sir Thomas Mauleverer's troopers. Among the figures in the medallions are St. Peter, St. Paul, and St. Andrew, and there is a fine shield of the arms of England, with a border or mantling of France, and surmounted by a label of three points azure.[80] The quality of the glass is exceedingly good, and the window, when the sun shines through it, resembles a screen of gems, and puts its neighbours to shame. The fourth window from the west, however, by Clayton & Bell, is of considerable merit. The vaulting-shafts are in clusters of three, and have overhanging bell-shaped bases with polygonal plinths, while upon the capitals are angels bearing shields, one angel to each cluster. The last two shields eastwards are charged respectively with the arms of Archbishop Savage (1501-1507), and with the three stars of St. Wilfrid. Where these shafts break the string-course under the windows they are encircled by a thin band. Upon the eastern fragment of the old nave there remains in this aisle another portion of Archbishop Roger's external string-course, and also (near the last capital of the arcade) some trace of a band of ornament.