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MONACO - JULY 01: Princess Caroline of Hanover attends the civil ceremony of the Royal Wedding of Prince Albert II of Monaco to Charlene Wittstock at the Prince's Palace on July 1, 2011 in Monaco. The ceremony took place in the Throne Room of the Prince's Palace of Monaco, followed by a religious ceremony to be conducted in the main courtyard of the Palace on July 2. With her marriage to the head of state of Principality of Monaco, Charlene Wittstock has/will become Princess consort of Monaco and gain the title, Princess Charlene of Monaco. Celebrations including concerts and firework displays are being held across several days, attended by a guest list of global celebrities and heads of state. (Photo by Pascal Le Segretain/Getty Images)

MONACO - JULY 01:  Princess Caroline of Hanover attends the civil ceremony of the Royal Wedding of Prince Albert II of Monaco to Charlene Wittstock at the Prince's Palace on July 1, 2011 in Monaco. The ceremony took place in the Throne Room of the Prince's Palace of Monaco, followed by a religious ceremony to be conducted in the main courtyard of the Palace on July 2. With her marriage to the head of state of Principality of Monaco, Charlene Wittstock has/will become Princess consort of Monaco and gain the title, Princess Charlene of Monaco. Celebrations including concerts and firework displays are being held across several days, attended by a guest list of global celebrities and heads of state.  (Photo by Pascal Le Segretain/Getty Images)

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MONTE CARLO, MONACO - NOVEMBER 19: Princess Caroline leaves the Cathedral as part of the National Day Celebrations on November 19, 2004 in Monte Carlo, Monaco. (Photo by Pascal Le Segretain/Getty Images)

MONTE CARLO, MONACO - NOVEMBER 19:  Princess Caroline leaves the Cathedral as part of the National Day Celebrations on November 19, 2004 in Monte Carlo, Monaco. (Photo by Pascal Le Segretain/Getty Images)

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MONACO - NOVEMBER 19: Monaco celebrates National Day in Monaco City, Monaco on November 19, 1997 - Caroline. (Photo by Pool BENAINOUS/SCORCELLETTI/Gamma-Rapho via Getty Images)

MONACO - NOVEMBER 19:  Monaco celebrates National Day in Monaco City, Monaco on November 19, 1997 - Caroline.  (Photo by Pool BENAINOUS/SCORCELLETTI/Gamma-Rapho via Getty Images)

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MONACO - UNDATED: (FILE PHOTO) Princess Caroline of Monaco, a member of the Grimaldi family, (L) attends an event with fashion designer Karl Lagerfeld and model Ines de la Fressange in 1988 in Monaco. Princess Caroline married Ernst August V, Prince of Hanover in 1999 and is also titled as Caroline, Princess of Hanover. She will be celebrating her 50th birthday on January 23rd. (Photo by Michel Dufour/WireImage)

MONACO - UNDATED: (FILE PHOTO)  Princess Caroline of Monaco, a member of the Grimaldi family, (L) attends an event with fashion designer Karl Lagerfeld and model Ines de la Fressange in 1988 in Monaco. Princess Caroline married Ernst August V, Prince of Hanover in 1999 and is also titled as Caroline, Princess of Hanover. She will be celebrating her 50th birthday on January 23rd. (Photo by Michel Dufour/WireImage)

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MONACO - UNDATED: (FILE PHOTO) Princess Caroline of Monaco, a member of the Grimaldi family, attends an event in 1983 in Monaco. Princess Caroline married Ernst August V, Prince of Hanover in 1999 and is also titled as Caroline, Princess of Hanover. She will be celebrating her 50th birthday on January 23rd. (Photo by Michel Dufour/WireImage)

MONACO - UNDATED: (FILE PHOTO)  Princess Caroline of Monaco, a member of the Grimaldi family, attends an event in 1983 in Monaco. Princess Caroline married Ernst August V, Prince of Hanover in 1999 and is also titled as Caroline, Princess of Hanover. She will be celebrating her 50th birthday on January 23rd. (Photo by Michel Dufour/WireImage)