What remains of the western portal, is of the earlier style. It was entered by a semi-circular arch, bordered by a fillet of the nail-head moulding. In the nave, the lower arches, with the columns and their capitals, as well as the false row of arches in the triforium, are wholly Norman; while the windows of the clerestory and their accompanying ornaments, are as completely gothic. The transepts and the choir shew a similar medley. The Harcourts, who held St. Sauveur till the middle of the fourteenth century, bestowed much pains upon the preservation of the abbey; but the last of this noble family was scarcely dead, when the convent was exposed to all the calamities of war. It was repeatedly pillaged by the contending parties, and was finally almost destroyed by the orders of King Edward III. who foreseeing, from the unfortunate complexion of affairs, that the French would be likely soon to besiege the castle, was desirous at least to deprive them of the advantage they might derive from having possession of the monastery. The heterogeneous character of the architecture of the church, is attributable to the injuries received on this occasion, and to those inflicted during the wars in the following century. The lower portion of the building, most probably, remained for a considerable length of time in the same ruined and neglected state in which it had been left after the execution of the orders of Edward III.; the clerestory and arches above, were not added till the return of a tranquil æra.