A religious order founded A. D. 1080, by one Brudo; so called from the desert Chartreux, the place of their institution. Their rule is extremely severe. They must not go out of their cells, except to church, without leave of their superior; nor speak to any person without leave. They must not keep any meat or drink till next day: their beds are of straw covered with a felt; their clothing, two hair cloths, two cowls, two pair of hose, and a cloak; all coarse. In the refectory they must keep their eyes on the dish, their hands on the table, their attention to the reader, and their hearts fixed on God. Women must not come into their churches.