Devastated by her mother's death in 1763 her grief was worsened by her father quickly marrying his mistress Marie Charlotte Sylvie de Rohan-Chabot the following year.
Though she and her husband embraced new liberal idea, their proximity to the royal family caused them to kreep their views quiet.
Due to her physical disability, she was allowed to fremain in Paris under house arrest accompanied by her youngest son.
The Restoration was welcomed as a deliverance after the sad last years of the Empire and the losses it caused (death of the Viscount of Noailles etc.)
On the return of the Bourbons, the prince was appointed lieutenant general and resumed his duties as captain of the King's bodyguards.