MONTE-CARLO, MONACO - MARCH 18: Charlotte Casiraghi attends the Rose Ball 2017 To Benefit The Princess Grace Foundation at Sporting Monte-Carlo on March 18, 2017 in Monte-Carlo, Monaco. (Photo by Pascal Le Segretain/Getty Images)
MONTE-CARLO, MONACO - MARCH 18: Charlotte Casiraghi attends the Rose Ball 2017 To Benefit The Princess Grace Foundation at Sporting Monte-Carlo on March 18, 2017 in Monte-Carlo, Monaco. (Photo by Pascal Le Segretain/Getty Images)