Charlotte Casiraghi
This 29-year-old model who also happens to be the second child of Caroline Princess of Hanover is the proud owner of assets that are said to be worth about $5.7 billions. This heiress of Stefano Casiraghi is the eight in line to the throne of Monaco. In 2013, she made headlines of several news outlets when it was leaked that she had become a mother of a boy out of wedlock with a French actor Gad Elmaleh, who also happens to be 16 years older than him.