The =Chapel of the Holy Trinity= (or that of =St. Thomas=) occupies the central portion of the Retro-Choir between the piers formed by double columns. In the old Chapel of the Trinity (destroyed by fire at the same time as Conrad’s Choir) Becket celebrated his first Mass as Archbishop. His body lay in the Crypt immediately below this spot. “In earlier times the easternmost chapel had contained an altar of the Holy Trinity, where Becket had been accustomed to say mass. Partly for the sake of preserving the two old Norman towers of St. Anselm and St. Andrew, which stood on the north and south side of this part of the church--but chiefly for the sake of fitly uniting to the church this eastern chapel on an enlarged scale, the pillars of the choir were contracted with that singular curve which attracts the eye of every spectator, as Gervase foretold that it would, when, in order to explain this peculiarity, he stated the two aforesaid reasons. The eastern end of the Cathedral, thus enlarged, formed, as at Ely, a more spacious receptacle for the honoured remains; the new Trinity Chapel, reaching considerably beyond the extreme limit of its predecessor, and opening beyond into a yet further chapel, popularly called Becket’s Crown. The windows were duly filled with the richest painted glass of the period, and amongst those on the northern side may still be traced elaborate representations of the miracles wrought at the subterranean tomb, or by visions and intercessions of the mighty Saint. High in the tower of St. Anselm, on the south side of the destined site of so great a treasure, was prepared--a usual accompaniment of costly shrines--the Watching Chamber. It is a rude apartment with a fireplace where the watcher could warm himself during the long winter nights, and a narrow gallery between the pillars, whence he could overlook the whole platform of the shrine, and at once detect any sacrilegious robber who was attracted by the immense treasures there collected. On the occasion of fires the Shrine was additionally guarded by a troop of fierce ban-dogs. “When the Cathedral was thus duly prepared, the time came for what, in the language of those days, was termed the ‘Translation’ of the relics.”--(A. P. S.) Becket’s body was removed here on July 7, 1220 (See page 4), and remained the only occupant of this chapel for more than a hundred years. It only proves in what deep affection the English nation held the Black Prince to have placed his remains by the side of Becket. His body lay in state in Westminster from June 8, 1376, to September 29; and on the Feast of Michaelmas it was taken to Canterbury, which he had selected for his resting-place. The procession from London to Canterbury was magnificent; and the idol of the nation was laid not in the Crypt, as he had expected, but in Trinity Chapel.