MONTE-CARLO, MONACO – MARCH 29: Beatrice Borromeo and Pierre Casiraghi attend the Rose Ball 2014 in aid of the Princess Grace Foundation at Sporting Monte-Carlo on March 29, 2014 in Monte-Carlo, Monaco. (Photo by Pascal Le Segretain/Getty Images)
MONTE-CARLO, MONACO – MARCH 29: Beatrice Borromeo and Pierre Casiraghi attend the Rose Ball 2014 in aid of the Princess Grace Foundation at Sporting Monte-Carlo on March 29, 2014 in Monte-Carlo, Monaco. (Photo by Pascal Le Segretain/Getty Images)