Next to de Marchia's tomb on the other side, the monument of Joan Viscountess _Lisle_ (_ob._ 1463) gives a good illustration of the change of architecture in a hundred and fifty years. The crockets are less free, and straight lines and square members abound; the fine ogee curve of its single arch is weakened by the rather weedy cusps, its shafts have become tiny mouldings, and their capitals mere knops. It is coloured, too, all over, in green and red and yellow, but heavily in comparison with its neighbour. The colour has been unusually well preserved, owing to the fact that the tomb was plastered over, and not discovered till 1809. There is no effigy, but a brass of apparently recent date bears this inscription:--_Hic jacet Joanna Vicecomitilla de Lisle una filiarum et haeredum Thomae Chedder, armiger quae fuit uxor Joannis Vicecomitis de Lisle, filii et haeredis Joannis Comitis Salopiæ et Margaretæ u[=x] ejus unius filiarum et haeredum Ricardi comitis Warwici et Elizabethae uxoris ejus filiæ et haeredis Thomæ de Berkley militis, domini de Berkeley, quæ obiit xv^{mo} die mensis Julii A[=n][=n] D^i MCCCCLXIII._ Lady Lisle's husband was killed at the battle of Chastillon (1453), when he was serving under his father, the famous Earl of Shrewsbury. The painted designs above the three niches should be noticed, and also those of the moulding and fleurs-de-lys at the side. The monument was evidently used as a chantry chapel; but it did not originally stand here. The brass by the north side of the screen (p. 89) may mark the site. The eastern aisles of the transepts are divided off into chapels by two Perpendicular stone screens, that of the south transept having a doorway in it for each chapel. These chapels are thus dedicated, beginning from the south--St. Martin, St. Calixtus, St. David, Holy Cross. From the last-named chapel the chapter-house is reached through an Early English doorway, and a similar doorway (now partly blocked by Biconyll's tomb) led from St. Martin's to a small building, supposed to have been a vestry, which once stood outside. In the south transept there are also--a small door to the tower, a small door with ogee head (p. 96), a rather larger doorway with modern lintel leading to the library (two shafts just above this door have been cut off, and faces very roughly cut on their extremities by way of corbel), and the large doorway leading to the cloister. The principal windows belong to the original work, having been merely filled with Perpendicular tracery. The windows of the south-east aisle contain Decorated tracery, but the tracery of the north-east aisle is not good.