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LONDON, ENGLAND - MAY 23: Queen Elizabeth II meets High Commissioner of New Zealand Sir Jerry Mateparae during an audience at Buckingham Palace on May 23, 2017 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

LONDON, ENGLAND - MAY 23: Queen Elizabeth II meets High Commissioner of New Zealand Sir Jerry Mateparae during an audience at Buckingham Palace on May 23, 2017 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

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LONDON, ENGLAND - MAY 23: Queen Elizabeth II meets High Commissioner of New Zealand Sir Jerry Mateparae and his wife Janine during an audience at Buckingham Palace on May 23, 2017 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

LONDON, ENGLAND - MAY 23: Queen Elizabeth II meets High Commissioner of New Zealand Sir Jerry Mateparae and his wife Janine during an audience at Buckingham Palace on May 23, 2017 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

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LONDON, ENGLAND - MARCH 23: Queen Elizabeth II meets Lieutenant Governor of Manitoba in Canada Janice Filmon and her husband Gary Filmon at an audience at Buckingham Palace on March 23, 2016 in London, England. (Photo by John Stillwell - WPA Pool/Getty Images)

LONDON, ENGLAND - MARCH 23:  Queen Elizabeth II meets Lieutenant Governor of Manitoba in Canada Janice Filmon and her husband Gary Filmon at an audience at Buckingham Palace on March 23, 2016 in London, England.  (Photo by John Stillwell - WPA Pool/Getty Images)

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LONDON, ENGLAND - MAY 23: Queen Elizabeth II presents Nicola Benedetti with the Queen's Medal for Music during an audience at Buckingham Palace on May 23, 2017 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

LONDON, ENGLAND - MAY 23: Queen Elizabeth II presents Nicola Benedetti with the Queen's Medal for Music during an audience at Buckingham Palace on May 23, 2017 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

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LONDON, ENGLAND - MARCH 23: Queen Elizabeth II meets Lieutenant Governor of Manitoba in Canada Janice Filmon and her husband Gary Filmon at an audience at Buckingham Palace on March 23, 2016 in London, England. (Photo by John Stillwell - WPA Pool/Getty Images)

LONDON, ENGLAND - MARCH 23:  Queen Elizabeth II meets Lieutenant Governor of Manitoba in Canada Janice Filmon and her husband Gary Filmon at an audience at Buckingham Palace on March 23, 2016 in London, England.  (Photo by John Stillwell - WPA Pool/Getty Images)