Meet Tatiana Casiraghi, a billionaire beer heiress and royal who was once Monaco's richest citizen

Tatiana Casiraghi attends the Monaco National Day Celebrations on November 19, 2016.

Pascal Le Segretain/Corbis via Getty Images

• Tatiana Casiraghi, the granddaughter of a brewing tycoon, was once the richest citizen in Monaco.
• She was born in New York, attended boarding school in Switzerland, and went to university in London.
• Her husband, Andrea Casiraghi, is fourth in line to the throne of Monaco.

Monaco is known across the globe for its wealthy residents...