A pleasant, decorous elderly lady who accompanies Mrs. Cheveley to all social events, apparently to lend Mrs. Cheveley an air of decency. In all respects, Lady Markby is the image of conservatism: her guiding lights are all the conventions that are just beginning to go out of style. Every time she speaks, she unthinkingly recites the curious prejudices of the upper classes. Her mild-mannered female conservatism complements Lord Caversham’s aggressive male conservatism.