Charles gave his daughter the title of Duchess of Albany in the peerage of Scotland, as well as the style "Her Royal Highness", but, being illegitimate, she had no right of succession. She lived with her father at Florence and Rome. Although she never married,t she did have two daughters and a son by her lover, Prince Ferdinand de Rohan. Raised in strictest secrecy, their identities concealed by a variety of alias and ruses, all three children were thought to have left no issue.
However, according to "The Stuarts' Last Secret" by Peter Pininski (Tuckwell Press, 2001), Charlotte's younger daughter, Marie Victoire de Rohan, demoiselle de Thorigny, married Paul Anthony Louis Bertrand de Nikorowicz, a Polish nobleman. Their granddaughter, Julia de Nikorowicz, married Count Leonard Pininski and became author Peter Pininski's great-great-grandmother.
Owing to the Prince's having no family by his wife Louise, Princess of Stolberg and mistress of the poet Alfieri, his daughter by Clementina was legitimated under the title of Duchess of Albany, by a deed registered by the Parliament of Paris in 1784.
The Duchess is the subject of Burns's poem 'The Bonnie Lass of Albanie'.
After she had been legitimised, the Duchess of Albany went to live with her father, whom she heired, but did not long survive.