"[In summer of 1763] ... although Mme de Pompadour was only forty-two, she had been very unwell for some time. It is difficult for us to tell ... exactly what was wrong with the marquise, but it sounds very like heart failure: she was constantly out of breath, felt weak, had swollen legs, lost her appetite and in all, began to look like a very much older woman. ... No matter how unwell she might feel, Mme de Pompadour insisted on living exactly as she had always done. She did have a sort of elevator - a flying armchair, it was called - installed so that she no longer had to walk up the stairs of Versailles, but otherwise kept up her many activities. ... Early in 1764, she became seriously ill. 'At Court, Mme de Pompadour's illness stopped everything ... It had begun, on February 29, by a bad cold on the chest. The seventh day of the illness, she was sought to be safe when she developed a strong miliarial fever, and on the eleventh a strong putrid fever was noticed. She was very ill, the worry grew, the King was almost always with her. On March 10, she was near death ... During the night of the fourteenth to the fifteenth she was given the last rites even though she was at Versailles [No one except the King and members of his family was allowed to die in the royal palace. Allowing Mme de Pompadour to stay on broke one of the firmest prescriptions of the etiquette.] His Majesty had seen her the day before, but he no longer saw her after she had received the last rites. ... She could no longer remain in bed because her chest illness choked her: she always sat in an armchair, unable to breathe. ... She died on April 15 [einem Sonntag]... at seven at night ... She was widely regretted, for she was kind and had helped those who had come to her.'" (in: Olivier Bernier: Louis the beloved – The Life of Louis XV, id., pp. 215-216).
"For the last few days the King hardly left her room. She could not breathe lying down, and sat in a chair, wearing a dressing-gown over a white taffeta petticoat; she had a little rouge and always smiled at everybody. Not one word of complaint passed her lips. When the doctors said that she was dying, she asked the King whether she ought to confess; she was not very anxious to do so, as it meant that she would not be able to see him again. However, he said that she must. He bade her a last farewell, and went upstairs to his own room. A priest came. He told her she must send for d'Ètioles [ihren Gatten]; obediently she did so, but her husband begged to be excused, saying that he was not well. Then she confessed and communicated. The next day Palm Sunday, the King was in church all day ... She told her women not to change her clothes, as it tired her and was no longer worth while. The priest made a movement as if to leave the room, she said: 'One moment, M. le Curé, we'll go together,' and died." (in: Nancy Mitford: Madame de Pompadour, id., p. 257). Ihre Beerdigung war zwei Tage später. Nun ruhte sie für immer neben ihrer geliebten Tochter Alexandrine-Jeanne in einer Kirche im Place Vendôme, die leider nicht mehr vorhanden ist.
Der Nachlass der Madame de Pompadour: "Madame de Pompadour never seems to have sold any of the objects which belonged to her. They accumulated in their thousands, and filled all her many houses to overflowing; after her death [ihr Halbbruder] Marigny was obliged to take two big houses in Paris, which, as well as the Elysée and the Réservoirs, contained her goods until the sale of them began. Furniture, china, statues, pictures, books, plants, jewels, linen, silver, carriages, horses, yards and hundreds of yards of stuff, trunks full of dresses, cellars full of wine... Few human beings since the world began can have owned so many beautiful things." (in: Nancy Mitford: Madame de Pompadour, id., p. 155).