Carthusians, a monastic order of a very severe type, founded by St. Bruno in 1086, each member of which had originally a single cell, eventually one consisting of two or three rooms with a garden, all of them opening into one corridor; they amassed considerable wealth, but were given to deeds of benefaction, and spent their time in study and contemplation, in consequence of which they figure not so much in the outside world as many other orders do.