Walter Crum Watson, Portuguese Architecture
“ Strange as are the details of these buttresses, still more strange are the windows of the chapter-house. Since about 1560 the upper cloister of the Filippes has covered the south side of the church so that the south chapter-house window, which now serves as a door, is hidden away in the dark. Still there is light enough to see that in naturalism and in originality it far surpasses anything elsewhere, except the west window of the same chapter-house. Up the jambs grow branches bound round by a broad ribbon. ”
