MONTE CARLO - JUNE 26 : Charlene Wittstock, HSH Princess Caroline of Hanover and Charlotte Casiraghi attend the International Jumping Show of Monte Carlo at Port Hercule on June 26, 2009 in Monte Carlo, Monaco. (Photo by Toni Anne Barson/Getty Images)
GUERNSEY, UNITED KINGDOM - SEPTEMBER 17: Stefano Casiraghi and Princess Caroline of Monaco during the Off Shore World Championship in Guernsey on September 17, 1988. (Photo by Georges De Keerle/Getty Images)
Gstaad, Switzerland.14 February 1979, Princess Stephanie and Princess Caroline of Monaco during a family vacation at their chalet in Gstaad, Switzerland. (Photo by Francis Apesteguy/Getty Images)
MONTE-CARLO, MONACO - JUNE 24: HSH Princess Caroline of Hanover attends the 15th Monte Carlo International Jumping on June 24, 2010 in Monte-Carlo, Monaco. (Photo by Toni Anne Barson/WireImage)
FRANCE- UNDATED FILE PHOTO: Princess Charlotte Casiraghi of Monaco is pictured with her mother and riding coach Thierry Rozie (L) in France, she celebrated her 18th birthday on August 3, 2004. Charlotte is the elder daughter of Princess Caroline of Monaco and the granddaughter of Princess Grace and Prince Rainier Grimaldi of Monaco. (Photo by Michel Dufour/WireImage)
