In 1482, Andrew Stewart, third son of Sir James Stewart, surnamed the Black Knight of Lorn, by Joan, Queen Dowager of Scotland, the widow of King James I., was promoted to the bishopric. He had previously been Lord Privy Seal, sub-Dean of Glasgow, and Rector of Monkland. In 1477 he was Provost of Lincluden. He died in 1501, and was buried in the choir of the cathedral. Bishop Andrew Stewart thus held the see for nineteen years. It is quite possible that the restoration of the chapter house was begun by Bishop David Stewart, but it seems more likely that the arms on the pillar are those of Bishop Andrew Stewart. The figure of St. Andrew, carved on the capital on the north side, being that opposite the royal arms, seems to favour that view; and the style of a good deal of the ornament connected with the restored stone lining of the interior, such as the enrichments of the corbels, &c., agrees rather with the end than the earlier parts of the fifteenth century. The windows, with their tracery, may, however, be of a somewhat earlier date. A stone reading desk forms part of the central pillar, being attached to the north-west side at a suitable level. A stone bench runs, as usual, round the chapter house, and the bases of the shafts in the angle rest upon it. The entrance to the chapter house is by a vestibule opening from the north aisle of the choir. The interior of the wall over the doorway has not been thickened like the other sides, and near the top of this blank wall are four niches (see Fig. 553), now empty, and these are surmounted by a smaller niche, also empty. On the east side of the vestibule is a small vaulted apartment, containing a stone trough, which was, doubtless, formerly used as a lavatory. In more recent times it was occupied as a living-room by the mother of General Anderson (a benefactor of the town), and the trough is said to have formed the future General’s cradle. A wheel-stair, in the south-east angle of the chapter house, leads to the roof. The north and south aisles of the choir have been vaulted and provided with ridge ribs and liernes. In the north aisle one bay and in the south aisle three bays of the vaulting still remain (see Figs. 552 and 548). The latter, called the Lady Chapel, has been restored in the fifteenth century, when traceried windows were inserted and the vaulting built. In this aisle several monuments have been erected. That of Bishop Winchester (1437-58), in the wall next the choir (see Fig. 548), is a good example of the work of the period. The recumbent effigy of the Bishop is in fair preservation, and some traces of paintings of angels are still visible in the interior of the vaulted canopy of this tomb. The monument to another Bishop, in the same wall, is of a simpler design. This aisle has long been the burial-place of the ancient family of the Gordons. The central tomb at the east end is that of the first Earl of Huntly, who died in 1470.