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LONDON, UNITED KINGDOM - OCTOBER 22: The Duke Of Gloucester, Grand Prior, The Order Of St John, Accompanied By The Duchess Of Gloucester, Attend A Dinner Held By The Corporation Of London To Mark The 900th Anniversary Of The Order At The Guildhall, London. (Photo by Tim Graham/Getty Images)

LONDON, UNITED KINGDOM - OCTOBER 22:  The Duke Of Gloucester, Grand Prior, The Order Of St John, Accompanied By The Duchess Of Gloucester, Attend A Dinner Held By The Corporation Of London To Mark The 900th Anniversary Of The Order At The Guildhall, London.  (Photo by Tim Graham/Getty Images)

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WIMBLEDON, UNITED KINGDOM: The 1999 Wimbledon champion Lindsay Davenport of the US (L) curtseys to HRH The Duchess of Gloucester (R) during a parade of former Wimbledon Champions to celebrate the Millenium Championships 01 July 2000. (ELECTRONIC IMAGE) (Photo credit should read GERRY PENNY/AFP/Getty Images)

WIMBLEDON, UNITED KINGDOM:  The 1999 Wimbledon champion Lindsay Davenport of the US (L) curtseys to HRH The Duchess of Gloucester (R) during a parade of former Wimbledon Champions to celebrate the Millenium Championships 01 July 2000.   (ELECTRONIC IMAGE) (Photo credit should read GERRY PENNY/AFP/Getty Images)

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WINDSOR, UNITED KINGDOM - JUNE 12: The Duke And Duchess Of Gloucester Making Their Way In An Open Carriage To Windsor Castle, Windsor, Berkshire For The State Visit To The United Kingdom Of The President Of The Republic Of South Africa. (Photo by Tim Graham/Getty Images)

WINDSOR, UNITED KINGDOM - JUNE 12:  The Duke And Duchess Of Gloucester Making Their Way In An Open Carriage To Windsor Castle, Windsor, Berkshire For The State Visit To The United Kingdom Of The President Of The Republic Of South Africa.  (Photo by Tim Graham/Getty Images)

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LONDON - NOVEMBER 9: (L-R) The Duke and Duchess of Gloucester, Timothy Laurence (husband of Princess Anne) and Princess Alexandra and her husband watch the annual Remembrance Day service which took place at The Cenotaph in Whitehall on November 9, 2003 in London, England. After a brief service members of The Royal Family, politicians and former members of the armed services laid wreaths. (Photo by Julian Herbert/Getty Images)

LONDON - NOVEMBER 9:    (L-R) The Duke and Duchess of Gloucester, Timothy Laurence (husband of Princess Anne) and Princess Alexandra and her husband watch the annual Remembrance Day service which took place at The Cenotaph in Whitehall on November 9, 2003 in London, England. After a brief service members of The Royal Family, politicians and former members of the armed services laid wreaths.  (Photo by Julian Herbert/Getty Images)

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LONDON - JUNE 12: The Countess of Wessex (L) and the Duchess of Gloucester arrive at Buckingham Palace after attending the Trooping The Colour ceremony to mark the Queen's official birthday at Horse Guards Parade on June 12, 2004 in London, England. (Photo by Scott Barbour/Getty Images)

LONDON - JUNE 12:  The Countess of Wessex (L) and the Duchess of Gloucester arrive at Buckingham Palace after attending the Trooping The Colour ceremony to mark the Queen's official birthday at Horse Guards Parade on June 12, 2004 in London, England. (Photo by Scott Barbour/Getty Images)