In the retro-choir a mosaic slab over the remains of Bishop Allen (d. 1845) has a curious history. A son of the bishop was passing through Paris soon after Napoleon's tomb was finished, and the surplus materials were offered for sale by auction. Some of these were purchased by Mr. Allen and utilised for the slab over the bishop's grave. The large monument to Canon Mill (d. 1853) has an effigy in copper on a support of marble and alabaster; students of India and Cambridge are by the feet. The tomb of Cardinal Luxemburg (d. 1443) is beneath the most eastern arch on the south, just north of Bishop West's chapel. When the monument was concealed behind some wood-work great dispute arose as to the headdress of the effigy. Bentham has an engraving with a cardinal's hat on the archbishop's head. Cole records that it was a mitre. When the wood-work was removed it was found that the figure was headless, as it still remains. [Illustration: THE EARLY ENGLISH PRESBYTERY AND THE SUPPOSED SHRINE OF S. ETHELDREDA.] Corresponding to the chapel of Bishop Alcock on the north is that of #Bishop West# (d. 1533) in the south aisle. This is a most valuable example of the Renaissance style. The niches and canopies with which the walls are covered are much smaller than those in the other chapel, and consequently more numerous; but by reason of the great delicacy of the tracery and the wonderful variety of the designs there is no impression that the decoration is overdone. No perfect specimen is left of the statues or of the heads which were introduced in the tabernacle work; and in its complete state this exquisite work can have existed for not more, than twelve or thirteen years, as the Order in Council for removing images was made in 1548. The roof is curious, as being an adaptation in the Renaissance of the late Gothic fan tracery Some colouring remains. The wrought-iron gates, with motto in Latin several times repeated, and the curious little pendants from the roof, consisting of angels bearing shields of arms, should be noticed. Bishops Greene (d. 1738), Keene (d. 1781), Sparke (d. 1836), and Woodford (d. 1885) are all buried in this chapel. On the south side, within a shrine-like receptacle, have been placed the relics of seven early benefactors of the church. Originally buried in the Saxon church, they have been several limes removed. They were placed here in 1771. The names are carved in seven shallow niches. One was an archbishop, five were bishops, and the seventh was Alderman Brithnoth. The dates range from 991 to 1067. The very interesting early Norman monumental slab, with carving in relief, preserved in the aisle, does not strictly belong to the cathedral, having been found at S. Mary's Church. Above a round-headed canopy are some Norman buildings; in the chamfer of the canopy is an invocation of the Archangel Michael, a figure of whom below has wings and nimbus, and in the robe a portion of a naked figure with pastoral staff beside it.