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From left to right, Princess Beatrice and Princess Eugenie leave Buckingham Palace during the Diamond Jubilee carriage procession prior to the service of thanksgiving at St.Paul's Cathedral on the Mall on June 5, 2012, in London.
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Queen Elizabeth II is seen during the Diamond Jubilee carriage procession prior to the service of thanksgiving at St.Paul's Cathedral on the Mall on June 5, 2012, in London.
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Queen Elizabeth II is seen during the Diamond Jubilee carriage procession prior to the service of thanksgiving at St. Paul's Cathedral on the Mall on June 5, 2012, in London.
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A view of The Mall during the Diamond Jubilee carriage procession prior to the service of thanksgiving at St. Paul's Cathedral on the Mall on June 5, 2012, in London.
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Queen Elizabeth II is driven down the Mall from Buckingham Palace for a service of thanksgiving at St. Paul's Cathedral on June 5, 2012, in London.
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From left to right, Prince Harry, Camilla, Duchess of Cornwall and Prince Charles, Prince of Wales, drive to St. Paul's Cathedral for a thanksgiving service during the Diamond Jubilee on June 5, 2012, in London.
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Queens Elizabeth II drives to St. Paul's Cathedral for a thanksgiving service during the Diamond Jubilee on June 5, 2012 in London.
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Prince Andrew, Duke of York (in first car), drives down the Mall on his way to St Paul's for a service of thanksgiving on June 5, 2012, in London.
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Catherine, Duchess of Cambridge, and Prince William, Duke of Cambridge, make their way from St James's Palace for the service of thanksgiving to mark the Diamond Jubilee of Queen Elizabeth II at St Paul's cathedral on June 5, 2012, in London.
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Visitors watch as a color guard walks toward Admiralty Arch prior to the royal procession during the Diamond Jubilee on June 5, 2012, in London.
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From left to right, Queen Elizabeth II walks with David Wooton, the Lord Mayor of London, after arriving at Mansion House in the City of London after a reception hosted by the Lord Mayor to mark the queen's Diamond Jubilee on June 5, 2012, in London.
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Queen Elizabeth II and David Wooton, the Lord Mayor of London, during a reception at Mansion House in the City of London hosted by the Lord Mayor to mark the queen's Diamond Jubilee on June 5, 2012, in London.
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A marching band makes its way along Whitehall, where crowds are lined up to watch the carriage procession on June 5, 2012, in London.
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Queen Elizabeth II travels by carriage to Buckingham Palace with Camilla, Duchess of Cornwall, and Prince Charles, Prince of Wales, after a lunch at Westminster Hall on June 5, 2012, in London.
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Queen Elizabeth II and Camilla, Duchess of Cornwall, look on during the Diamond Jubilee carriage procession after the service of thanksgiving at St.Paul's Cathedral on The Mall on June 5, 2012, in London.
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Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, look on during the Diamond Jubilee carriage procession after the service of thanksgiving at St.Paul's Cathedral on The Mall on June 5, 2012, in London.
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Prince Harry smiles during the Diamond Jubilee carriage procession after the service of thanksgiving at St.Paul's Cathedral on The Mall on June 5, 2012, in London.
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A view of the Diamond Jubilee carriage procession on The Mall after the service of thanksgiving at St.Paul's Cathedral on the Mall on June 5, 2012, in London.
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Queen Elizabeth II travels by carriage to Buckingham Palace with Camilla, Duchess of Cornwall, and Prince Charles, Prince of Wales, after a lunch at Westminster Hall on June 5, 2012, in London.
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Catherine, Duchess of Cambridge, and Prince William, Duke of Cambridge, are seen during the Diamond Jubilee carriage procession after the service of thanksgiving at St.Paul's Cathedral on the Mall on June 5, 2012, in London.
Dan Kitwood/Getty Images
Catherine, Duchess of Cambridge, is seen during the Diamond Jubilee carriage procession after the service of thanksgiving at St.Paul's Cathedral on the Mall on June 5, 2012, in London.
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Queen Elizabeth II, Prince Charles, Prince of Wales, and Camilla, Duchess of Cornwall, ride in a carriage towards Buckingham Palace as part of the queen?s Diamond Jubilee on June 5, 2012, in London.