India, May 19 -- Before she became Crown Princess of Greece, Marie-Chantal was best known as the daughter of billionaire Robert Warren Miller - the American tycoon behind the global Duty Free Shops empire. Born in London and raised between Hong Kong, Paris, Switzerland and New York, Marie-Chantal grew up in extraordinary privilege, the middle daughter of one of the most well-connected families in the world.

Marie-Chantal's upbringing was steeped in wealth, culture, and connections. Her father's business success had made him one of the richest men in Asia by the 1980s, and her mother, Maria Clara "Chantal" Pesantes Becerra, was an Ecuadorian socialite.

Marie-Chantal may have made a royal match, but her two sisters - Pia and Alexandra - a...