During the episcopate of Eborard's successor, Bishop William de Turbe, the cathedral appears neither to have gained or suffered until, about 1169 or 1170, a fire broke out in the monastic buildings; the fire-extinguishing appliances in those days, if indeed there were any at all, could not prevent it spreading to the cathedral. It is generally believed that the original Norman Lady Chapel was also well destroyed. Bishop William de Turbe, although an old man at the time (he died in 1174), is said to have taken a vow that he would not go from within twelve leucas of the cathedral, unless compelled by the direst necessity, until the ravages of the flames had been repaired. He is reported to have seated himself at the door of the cathedral, and to have begged alms for this purpose from the worshippers. The work of reparation was carried on by his successor, John of Oxford, who may also be said to have completely finished Herbert's cathedral. He provided the furniture of the church, the vestments, books and ornaments, and, probably, entirely re-modelled the monastic buildings. He is also said to have built the Infirmary, of which now only three piers remain, to the south of the cloisters. In the years following, various works were doubtless carried on, but it is not until the time of Walter de Suffield, about 1250, that anything important in the way of structural alteration was effected. The fire of 1169 had in part or whole destroyed the original Norman Lady Chapel, and Bishop de Turbe had restored the same in some measure. But the _cultus_ of the Blessed Virgin in the interval had gathered strength wonderfully; chapels dedicated to her naturally became important, and Bishop Suffield determined to pull down the old Norman work and rebuild a chapel in the Early English style then prevalent. Dean Goulburn, in his work on the cathedral, estimated the size of the later chapel at 90 feet long by 30 feet wide, and these dimensions are shown plotted in dotted lines on the plan in this book. This is longer and narrower than the size given in previous conjectures, but Dean Goulburn had the opportunity of inspecting the foundations of the chapel, which, with those of the still earlier one, lie buried but a few feet below the surface in a garden to the east of the cathedral. In the same place, and over the entrance arches remaining, the height and lines of the later roof can be seen still plainly marked on the stonework. These entrance arches are beautifully moulded and decorated on the inside with the "dog-tooth" ornament--a decoration peculiar to the Early English style. The theological reaction which followed close on this movement led to the neglect of the chapel, and obviated the necessity of maintaining it as a place of worship. It had probably greatly decayed; that Dean Gardiner (1573-89), no longer needing it for services, was tempted to pull it down, as a cheaper expedient than keeping it in repair.