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NORFOLK, UNITED KINGDOM: (EDITORIAL USE ONLY / NO SALES) (Not for use after December 31, 2021, ALL uses after this date will require permission from Kensington Palace) (The photograph must not be digitally enhanced, manipulated or modified in any manner or form and must include all of the individuals in the photograph when published)This handout image provided by Kensington Palace on December 16 2020 of the 2020 Christmas card of the Duke and Duchess of Cambridge, features an image taken in the autumn by photographer Matt Porteous showing Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge with their three children Prince George (left), Princess Charlotte (right) and Prince Louis at Anmer Hall in Norfolk. (Photo by Matt Porteous / The Duke and Duchess of Cambridge/Kensington Palace via Getty Images)

NORFOLK, UNITED KINGDOM: (EDITORIAL USE ONLY / NO SALES) (Not for use after December 31, 2021, ALL uses after this date will require permission from Kensington Palace) (The photograph must not be digitally enhanced, manipulated or modified in any manner or form and must include all of the individuals in the photograph when published)This handout image provided by Kensington Palace on December 16 2020 of the 2020 Christmas card of the Duke and Duchess of Cambridge, features an image taken in the autumn by photographer Matt Porteous showing Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge with their three children Prince George (left), Princess Charlotte (right) and Prince Louis at Anmer Hall in Norfolk. (Photo by Matt Porteous / The Duke and Duchess of Cambridge/Kensington Palace via Getty Images)
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LONDON, ENGLAND - JUNE 08: Prince Louis, Prince George, Prince William, Duke of Cambridge, Princess Charlotte and Catherine, Duchess of Cambridge appear on the balcony during Trooping The Colour, the Queen's annual birthday parade, on June 08, 2019 in London, England. (Photo by Karwai Tang/WireImage)

LONDON, ENGLAND - JUNE 08: Prince Louis, Prince George, Prince William, Duke of Cambridge, Princess Charlotte and Catherine, Duchess of Cambridge appear on the balcony during Trooping The Colour, the Queen's annual birthday parade, on June 08, 2019 in London, England. (Photo by Karwai Tang/WireImage)
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WireImage Karwai Tang

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LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge, Catherine Duchess of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge and Prince Louis of Cambridge clap for NHS carers as part of the BBC Children In Need and Comic Relief 'Big Night In at London on April 23, 2020 in London, England.The 'Big Night In' brings the nation an evening of unforgettable entertainment in a way we've never seen before. Raising money for and paying tribute to those on the front line fighting Covid-19 and all the unsung heroes supporting their communities. (Photo by Comic Relief/BBC Children in Need/Comic Relief via Getty Images)

LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge, Catherine Duchess of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge and Prince Louis of Cambridge clap for NHS carers as part of the BBC Children In Need and Comic Relief 'Big Night In at London on April 23, 2020 in London, England.The 'Big Night In' brings the nation an evening of unforgettable entertainment in a way we've never seen before. Raising money for and paying tribute to those on the front line fighting Covid-19 and all the unsung heroes supporting their communities. (Photo by Comic Relief/BBC Children in Need/Comic Relief via Getty Images)
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Getty Images Entertainment Comic Relief