Another question about In This House of Brede

As you were reading, did you find yourself wondering what in the world was a "pleached alley"? I looked it up. Encyclopedia Britannica says it's a "garden path, on each side of which living branches have been intertwined in such a way that a wall of self-supporting living foliage has grown up. To treat each side of a garden walk, or alley, with pleaching and thus make a secluded walk was a favourite device of the 16th and 17th centuries. Although most pleaching is done by gardeners, it can also occur naturally. Maples, sycamores, and lindens are commonly pleached." 'Pleached' refers to plaiting or braiding.