There might be something in the burial records, but then again there might be nothing.
I had a look at the C19th newspaper database and came up with this:
Died At Worthing, Robert Michaelson Esq. late of Barrow, Lancashire : and at the same place
a few days preceding, Millicent, his wife.
(Jackson's Oxford Journal 12 October 1822)
But there is another death notice placed previously - I don't know if they are the same people but it seems a bit of a coincidence if they aren't, but it suggests she didn't die in Worthing:
Died A few days ago at Brompton near London Mrs Michaelson wife of Robert Michaelson Esq
of Barrow Lodge in this county
(Lancashire Gazette 21 September 1822)
Do you know that Robert Michaelson left a PCC will which was proved 17 October 1822?
Carole