It is certain, moreover, that she separated from her husband almost
immediately after my cousin's trial and condemnation, and lived in
comparative retirement from the world, as it is certain that he went
suddenly mad, twenty-five years later, in ---- Jail, a few hours after
her tragic death, and before he could possibly have heard of it by the
ordinary channels; and that he was sent to ---- Asylum, where, after his
frenzy had subsided, he remained for many days in a state of suicidal
melancholia, until, to the surprise of all, he rose one morning in high
spirits, and apparently cured of all serious symptoms of insanity; so he
remained until his death. It was during the last year of his life that
he wrote his autobiography, in French and English.

There is nothing to be surprised at, taking all the circumstances into
consideration, that even so great a lady, the friend of queens and
empresses, the bearer of a high title and an illustrious name, justly
celebrated for her beauty and charm (and her endless charities), of
blameless repute, and one of the most popular women in English society,
should yet have conceived a very warm regard for my poor cousin; indeed,
it was an open secret in the family of "Lord Cray" that she had done so.
But for them she would have taken the whole world into her confidence.

After her death she left him what money had come to her from her father,
which he disposed of for charitable ends, and an immense quantity of MS.
in cipher--a cipher which is evidently identical with that he used
himself in the annotations he put under innumerable sketches he was
allowed to make during his long period of confinement, which (through
her interest, and no doubt through his own good conduct) was rendered as
bearable to him as possible. These sketches (which are very
extraordinary) and her Grace's MS. are now in my possession.