Louis XIV issued a certificate dated 1645 which willed Marguerite de Rohan to "keep her status, her dignity of a princess, should she marry Comte de Chabot". When the Marquis de Seneterre interrogated her on these matters, she replied: "I do not know if I shall be able to decide to marry him, but I do feel that I could not bear it if he married someone else."

Previously she had refused two souvereign princes and such other princes as the Comte de Soissons, prince of 'the royal blood', the Duke de Nemours and the Duke of Saxe-Weimar. Despite their enmity with the Rohans, they sought the support of the Duke d'Enghien and the Prince de Conde; the latter persuaded the queen to say to her on his behalf: This way we can bring the Rohans into the Catholic side; and their children as well," as she was Protestant. By her marriage, she brought her dowry to her husband as well as all her possessions and titles, with the condition that the children bear the name and
coat-of-arms of Rohan only. Later the children decided to call themselves Rohan-Chabot and thereby did not honour the clauses of the marriage-contract.
The ducal peerage of Rohan was re-established for Chabot in 1648. Marguerite, Duchess of Rohan in her own right, as a widow, was named guardian of her children by royal letters of 10 June 1655. She
died in Paris on 9 April 1684 at the age of 67.
 

Source: Leo van de Pas