Countess of Desmond

I should be much obliged if any of your readers would inform me of the manner of the death of Catherine Fitzgerald, Countess of Desmond, commonly called the "old Countess of Desmond," who died in 1626, aged above 140 years,—some say, 162 years. I think I remember reading, some years since, that she died from a fall from a cherry-tree, at the age of 144 years. If so, where can the account be found?