MONACO, MONACO - MAY 31: (EDITOR'S NOTE : NO TABLOIDS WEB & PRINT, NO DAILY MAIL, NO DAILY MAIL GROUP, NO VOICI, NO CLOSER) Princess Charlene of Monaco and Prince Albert II of Monaco along with other members of the royal family parade in vintage cars as part of the celebrations to mark the birth of the late Rainer III, on May 31, 2023 in Monaco. (Photo by Pierre Villard/SC Pool - Corbis/Corbis via Getty Images)
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MONACO, MONACO - MAY 31: (EDITOR'S NOTE : NO TABLOIDS WEB & PRINT, NO DAILY MAIL, NO DAILY MAIL GROUP, NO VOICI, NO CLOSER) Prince Albert II of Monaco and Princess Charlene of Monaco and other members of the royal family parade in vintage cars as part of the celebrations to mark the birth of the late Rainer III , on May 31, 2023 in Monaco. (Photo by Pierre Villard/SC Pool - Corbis/Corbis via Getty Images)
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Corbis Entertainment SC Pool - Corbis

MONACO, MONACO - MAY 31: (EDITOR'S NOTE : NO TABLOIDS WEB & PRINT, NO DAILY MAIL, NO DAILY MAIL GROUP, NO VOICI, NO CLOSER) Princess Caroline of Hanover paraded in vintage cars as part of the celebrations to mark the birth of the late Rainer III, on May 31, 2023 in Monaco. (Photo by Pierre Villard/SC Pool - Corbis/Corbis via Getty Images)
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Corbis Entertainment SC Pool - Corbis

MONACO, MONACO - MAY 31: (EDITOR'S NOTE : NO TABLOIDS WEB & PRINT, NO DAILY MAIL, NO DAILY MAIL GROUP, NO VOICI, NO CLOSER) Princess Stephanie of Monaco parade in vintage cars as part of the celebrations to mark the birth of the late Rainer III, on May 31, 2023 in Monaco. (Photo by Pierre Villard/SC Pool - Corbis/Corbis via Getty Images)
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Corbis Entertainment SC Pool - Corbis

MONACO, MONACO - MAY 31: (EDITOR'S NOTE : NO TABLOIDS WEB & PRINT, NO DAILY MAIL, NO DAILY MAIL GROUP, NO VOICI, NO CLOSER) Pierre Casiraghi (R) and Beatrice Borromeo (2ndR) and Ben Sylvester Strautmann and Princess Alexandra of Hanover parade in vintage cars as part of the celebrations to mark the birth of the late Rainer III, on May 31, 2023 in Monaco. (Photo by Pierre Villard/SC Pool - Corbis/Corbis via Getty Images)
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Corbis Entertainment SC Pool - Corbis