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MONTE-CARLO, MONACO - MARCH 28: (TABLOIDS OUT) (L-R) Beatrice Borromeo and Pierre Casiraghi attend the Rose Ball 2015 in aid of the Princess Grace Foundation at Sporting Monte-Carlo on March 28, 2015 in Monte-Carlo, Monaco. (Photo by Pierre Villard/SBM/PLS POOL/Getty Images)

MONTE-CARLO, MONACO - MARCH 28: (TABLOIDS OUT) (L-R) Beatrice Borromeo and Pierre Casiraghi attend the Rose Ball 2015 in aid of the Princess Grace Foundation at Sporting Monte-Carlo on March 28, 2015 in Monte-Carlo, Monaco. (Photo by Pierre Villard/SBM/PLS POOL/Getty Images)
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