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NATIONAL HARBOR, MD - FEBRUARY 27: Princess Mary of Denmark arrives to the 2nd World Conference of Women's Shelters opening ceremony at Gaylord National Resort Hotel And Convention Center on February 27, 2012 in National Harbor, Maryland. (Photo by Kris Connor/Getty Images)

NATIONAL HARBOR, MD - FEBRUARY 27: Princess Mary of Denmark arrives to the 2nd World Conference of Women's Shelters opening ceremony at Gaylord National Resort Hotel And Convention Center on February 27, 2012 in National Harbor, Maryland. (Photo by Kris Connor/Getty Images)

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NATIONAL HARBOR, MD - FEBRUARY 27: Princess Mary of Denmark arrives at the 2nd World Conference of Women's Shelters opening ceremony at Gaylord National Resort Hotel And Convention Center on February 27, 2012 in National Harbor, Maryland. (Photo by Paul Morigi/WireImage)

NATIONAL HARBOR, MD - FEBRUARY 27:  Princess Mary of Denmark arrives at the 2nd World Conference of Women's Shelters opening ceremony at Gaylord National Resort Hotel And Convention Center on February 27, 2012 in National Harbor, Maryland.  (Photo by Paul Morigi/WireImage)

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NATIONAL HARBOR, MD - FEBRUARY 27: Princess Mary of Denmark speaks during the 2nd World Conference of Women's Shelters opening ceremony at Gaylord National Resort Hotel And Convention Center on February 27, 2012 in National Harbor, Maryland. (Photo by Kris Connor/Getty Images)

NATIONAL HARBOR, MD - FEBRUARY 27: Princess Mary of Denmark speaks during the 2nd World Conference of Women's Shelters opening ceremony at Gaylord National Resort Hotel And Convention Center on February 27, 2012 in National Harbor, Maryland. (Photo by Kris Connor/Getty Images)