survived the beautiful alterations of Dom Manoel, the details of the cloister must have been very like those of the church. The refectory to the west of the cloister is a plain room roofed with a pointed barrel-vault; but the chapter-house is constructively the most remarkable part of the whole convent. It is a great room over sixty feet square, opening off the east cloister walk by a large pointed door with a two-light window each side. This great space is covered by an immense vault, upheld by no central shaft; arches are thrown across the corners bringing the square to an octagon, and though not very high, it is one of the boldest Gothic vaults ever attempted; there is nowhere else a room of such a size vaulted without supporting piers, and probably none where the buttresses outside, with their small projection, look so unequal to the work they have to do, yet this vault has successfully withstood more than one earthquake. The inside of the church is in singular contrast to the floridness of the outside. The clustered piers are exceptionally large and tall; there is no triforium, and the side windows are set so far back as to be scarcely seen. The capitals have elaborate Gothic foliage, but are so square as to look at a distance almost romanesque. In front of each pier triple vaulting shafts run up, but instead of the side shafts carrying the diagonal ribs as they should have done, all three carry bold transverse arches, leaving the vaulting ribs to spring as best they can. Each bay has horizontal ridge ribs, though their effect is lost by the too great strength of the transverse arches. The chancel, a little lower than the nave and transepts, is entered by an acutely pointed and richly cusped arch, and has a regular Welsh groined vault, with a well-developed ridge rib. Unfortunately almost all the church furniture was destroyed during the French retreat, and of the stained glass only that in the windows of the main apse survives, save in the three-light window of the chapter-house, a window which can be exactly dated as it displays the arms of Portugal and Castile quartered. This could only have been done during the life of Dom Manoel's first wife, Isabel, eldest daughter and heir of Ferdinand and Isabella. Dom Manoel married her in 1497, and she died in 1498 leaving a son who, had he lived, would have inherited the whole Peninsula and so saved Spain from the fatal connection with the Netherlands inherited by Charles V. from his own father. (Fig. 34.)