Charlotte Casiraghi – $1 billion
In fact, Charlotte is the second child of Caroline, Princess of Hanover, and Stefano Casiraghi, an Italian industrialist. She’s also 11th in line to the throne of Monaco! A real-life fairy princess, someone pinch me! Her maternal grandparents were…wait for it… Rainier III, Prince of Monaco, and the American actress Grace Kelly. Just wow! She married film producer Dimitri Rassam, son of French actress Carole Bouquet, at the Princely Palace of Monaco on June 1, 2019.