Here is also the third duchess, Miss Hoskins, a great city heiress. The painter, I suspect, has flattered her, for she had not in her day the reputation of beauty. When I looked at this picture, so full of delicate, and youthful, and smiling loveliness, I could not help recurring to a passage in Horace Walpole's letters, in which he alludes to this sylph-like being, as the "ancient grace," and congratulates himself on finding her in good-humour. But of all the female portraits, the one which struck me most was that of Lady Charlotte Boyle, the young Marchioness of Hartington, in a masquerade habit of purple satin, embroidered with silver; a fanciful little cap and feathers, thrown on one side, and the dark hair escaping in luxuriant tresses; she holds a mask in her hand, which she has just taken off, and looks round upon us in all the consciousness of happy and high-born loveliness. She was the daughter and heiress of Richard Boyle, the last Earl of Burlington and Cork, and Baroness Clifford in her own right. The merits of the Cavendishes were their own, but their riches and power, in several instances, were brought into the family by a softer influence. Through her, I believe, the vast estates of the Boyles and Cliffords in Ireland and the north of England, including Chiswick and Bolton Abbey, have descended to her grandson, the present duke.[64] There are several pictures of her here--one playing on the harpsichord, and another, small and very elegant, in which she is mounted on a spirited horse. There are two heads of her in crayons, by her mother, Lady Burlington,[65] ill-executed, but said to be like her. And another picture, representing her and her beautiful but ill-fated sister, Lady Dorothy, who was married very young to Lord Euston, and died six months afterwards, in consequence of the brutal treatment of her husband.[66] All the pictures of Lady Hartington have the same marked character of pride, intellect, vivacity, and loveliness. But short was her gay and splendid career! She died of a decline in the sixth year of her marriage, at the age of four-and-twenty.