The duchess only survived Fox a year; she died in 1806, beloved, charitable, penitent. Her disease was an abscess of the liver, which was detected rather suddenly, and which proved fatal some months after it was first suspected. When the Prince of Wales heard of her death, he remarked: "Then the best-natured and best-bred woman in England is gone." Her remains were conveyed to the family vault of the Cavendish family in All Saints' Church, Derby; and over that sepulchre one fond heart, at all events, sorrowed. Her sister, Lady Duncannon, though far inferior to the duchess in elegance both of mind and person, had the same warm heart and strong affection for her family. During the month of July, 1811, a short time before the death of the Duke of Devonshire (the husband of the duchess), Sir Nathaniel Wraxall visited the vault of All Saints' Church. As he stood admiring the coffin in which the remains of the once lovely Georgiana lay mouldering, the woman who had accompanied him showed him the shreds of a bouquet which lay on the coffin. Like the mortal coil of that frame within, the bouquet was now reduced almost to dust. "That nosegay," said the woman, "was brought here by the Countess of Besborough, who had intended to place it herself upon the coffin of her sister; but as she approached the steps of the vault, her agony became too great to permit her to proceed. She knelt down on the stones of the church, as nearly over the place where the coffin stood in the vault below as I could direct, and there deposited the flowers, enjoining me to perform an office to which she was unequal. I fulfilled her wishes." By others the poor duchess was not so faithfully remembered. Her friend Lady Elizabeth Foster had long since become her rival, yet one common secret, it was believed, kept them from a rupture. Both had, it was understood, much to conceal. The story of the late Duke of Devonshire's supposed birth has been referred to: he is supposed to have been the son of the duke, but not of Georgiana, Duchess of Devonshire, but of her who afterward bore that title, Lady Elizabeth Foster. The inflexible determination of the late duke to remain single, according, it is said, to an agreement between him and his uncle, then Lord George Cavendish, always seemed to imply, in a man of such pure and domestic tastes, so affectionate a disposition, and so princely a fortune, some dire impediment.