From the east side one can see the semicircular apse with its three radiating chapels, the main and the northern chapels are still Romanesque while the southern one has been rebuilt in Renaissance times.
32.
The literary evidence cited above indicates that construction proceeded from east to west and, indeed, it appears that the earliest part of the exterior walls is the southern, lower part of the ambulatory and its corresponding radiating chapels.
33.
The second phase of construction, which was completed by the end of the eleventh-century, included the building of the five radiating chapels, the ambulatory with a lower roof, the choir without the gallery and the nave without the galleries.
34.
In the subsequent period from the 14th through 16th centuries, nearly continuous expansion projects in the radiating chapels, expansions of the transepts, a chapter house, nave aisles and a single tower western section were all added during this period.
35.
The common source of the ambulatory and radiating chapels seems to have been the church of St . Martin of Tours, where originally there was a choir of two bays, and an apse of five bays, surrounded by a single ambulatory and five radiating chapels.
36.
The common source of the ambulatory and radiating chapels seems to have been the church of St . Martin of Tours, where originally there was a choir of two bays, and an apse of five bays, surrounded by a single ambulatory and five radiating chapels.
37.
It has a Latin cross ground plan, and three aisles, which terminate in a raised presbytery behind which is an apse with an ambulatory and three radiating chapels, an unusual feature in Italian church design; the transept also terminates at either end in a semi-circular chapel.
38.
It has recently been proposed that he may have been a lay agent or representative of the cathedral chapter of Cambrai Cathedral to obtain a relic of St . Elizabeth of Hungary who had made a donation to the cathedral chapter and to whom the chapter dedicated one of the radiating chapels in their new chevet.
