Pierre Casiraghi and his girlfriend Coun [Getty Images]

Pierre Casiraghi and his girlfriend Countess Beatrice Borromeo, arrive for the annual Rose Ball at the Monte-Carlo Sporting Club in Monaco, on March 27, 2010. The Rose Ball is one of the major charity events in Monaco. Created in 1954, it benefits the Princess Grace Foundation. AFP PHOTO VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

AFP VALERY HACHE