They had a son, who died young in 1844, and a daughter Giulia Bartolini-Baldelli, who married conte Arturo degli Alberti Mori Ubaldini[8][9] [without issue ?].
[11] In her second marriage, Giustina became the third wife of Jérôme Bonaparte, the former King of Westphalia, youngest brother of Emperor Napoleon I and widower of Princess Catharina of Württemberg.
It was a morganatic marriage upon the request of Jerome, who did not wish to recognize her officially and insisted upon calling her Madame la Marquise and have her referred to as such by others.
Baron du Casse described her as beautiful, distinguished, sweet and interested in charity, but also as indolent and languid in her habits.
In 1853, Jerome was again made Imperial Prince and heir presumptive after his nephew Napoleon III had become Emperor of the French.