Already, in 1802, she had been unhappily married to Napoléon's brother, Prince Louis, and they were made King and Queen of Holland in 1806, although he abdicated in 1810, by which time they had separated. In 1814, after Napoléon's fall from power, she was made Duchess of Saint Leu by Louis XVIII.
She and Prince Louis had three children, including the future Napoléon III, and she also had a son by her lover, the Comte de Flahault, who became the Duke of Morny and a minister in the government of the Second Empire.