She died on the 2nd December, 1853, eighty-four years of age (forty-seven years after her husband's death), and was buried in the same grave with her father, in the Friends' burial-ground, at the Gilden Croft, Norwich. Her life has been written by her friend, Miss Brightwell; and a portrait of 'la charmante Madame Opie' (as she was called in Paris), in her Quakeress's cap and with uplifted eyes full of gentle ardour, after a medallion by David, is prefixed to that work. Haydon also (who, by the way, was indebted to Opie for much sound practical advice in his art) painted her, in her tall black Quakeress's bonnet, in his great group of the 'Anti-Slavery Convention,' now in the National Portrait Gallery; and her husband painted her portrait more than once: an engraving after one of these portraits is prefixed to a later edition of Miss Brightwell's 'Life.' To her more refined taste were said to be due not only a superior delicacy and grace sometimes thought to be found in the female portraits painted after Opie's second marriage, but also some of the finer touches in his lectures as Professor of Painting, to which reference will presently be made. But Mrs. Opie disclaimed the latter suggestion with all the energy and indignation of which her tranquil spirit was capable, observing that 'the slight texture of muslin could as easily assume the consistency of velvet.' About half of Opie's sitters were ladies; and one of his best early works is a portrait of Mrs. Delany,[119] now at Hampton Court; it used formerly to hang in the Royal bedchamber at Windsor. The following contemporary criticism by a Cornish lady on Opie's work will be interesting to at least some of my readers: _The Hon^{ble}. Mrs. Boscawen to Mrs. Delany._ '26th Sept., 1782. * * * * * 'Your favoured Opie is still in raptures at the thoughts of Bulstrode (the residence of the Duke of Portland). His portrait of Lady Jerningham did not _quite_ satisfy me, for I concluded it wou'd be perfect, and her _person_, _hands_, _posture_, _spinning-wheel_, all _are so_; but the face (or rather countenance) does not _quite_ please me.'