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LONDON, UNITED KINGDOM - MAY 14: Duchess Of Gloucester At The State Opening Of Parliament (Photo by Tim Graham/Getty Images)

LONDON, UNITED KINGDOM - MAY 14:  Duchess Of Gloucester At The State Opening Of Parliament  (Photo by Tim Graham/Getty Images)

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LONDON, UNITED KINGDOM - DECEMBER 02: The Duchess Of Gloucester Attending A State Banquet Held At The Guildhall In Honour Of The President Of The Republic Of Korea's State Visit. (Photo by Tim Graham/Getty Images)

LONDON, UNITED KINGDOM - DECEMBER 02:  The Duchess Of Gloucester Attending A State Banquet Held At The Guildhall In Honour Of The President Of The Republic Of Korea's State Visit.  (Photo by Tim Graham/Getty Images)

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LONDON, ENGLAND - OCTOBER 26: The Duchess of Gloucester attends a dinner at the Guildhall held in honour of the Norwegian Royal Family visit to Britain on October 26, 2005 in London, England. (Photo by Tim Graham/Getty Images)

LONDON, ENGLAND - OCTOBER 26: The Duchess of Gloucester attends a dinner at the Guildhall held in honour of the Norwegian Royal Family visit to Britain on October 26, 2005 in London, England. (Photo by Tim Graham/Getty Images)

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Britain's Birgitte, Duchess of Gloucester, arrives for a banquet in honour of Singapore's President Tony Tan Keng Yam at the Guildhall in central London on October 22, 2014 on the second full day of the Singapore president's state visit to Britain. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

Britain's Birgitte, Duchess of Gloucester, arrives for a banquet in honour of Singapore's President Tony Tan Keng Yam at the Guildhall in central London on October 22, 2014 on the second full day of the Singapore president's state visit to Britain.  AFP PHOTO / LEON NEAL        (Photo credit should read LEON NEAL/AFP/Getty Images)

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LONDON, UNITED KINGDOM - JULY 01: The Duchess Of Gloucester, Photographed On Her 17th Wedding Anniversary At Home In Kensington Palace (Photo by Tim Graham/Getty Images)

LONDON, UNITED KINGDOM - JULY 01:  The Duchess Of Gloucester, Photographed On Her 17th Wedding Anniversary At Home In Kensington Palace  (Photo by Tim Graham/Getty Images)