National Day In Monaco : Tribute To Rainier Iii At Monte Carlo Opera In Monaco City, Monaco On November 19, 2000. [Getty Images]

MONACO - NOVEMBER 19: National day in Monaco : Tribute to Rainier III at Monte Carlo opera in Monaco City, Monaco on November 19, 2000 - Caroline, Ernst August and Antoinette. (Photo by Pool BENAINOUS/SCORCELLETTI/Gamma-Rapho via Getty Images)

Gamma-Rapho Pool BENAINOUS/SCORCELLETTI