WINDSOR, ENGLAND - DECEMBER 08: Prince William, Duke of Cambridge, (R) and Catherine, Duchess of Cambridge (L), wearing protective face coverings to combat the spread of the coronavirus, attend an event to thank local volunteers and key workers for the work they are doing during the coronavirus pandemic and over Christmas in the quadrangle of Windsor Castle on December 8, 2020 in Windsor, England.  The Queen and members of the royal family gave thanks to local volunteers and key workers for their work in helping others during the coronavirus pandemic and over Christmas at Windsor Castle in what was also the final stop for the Duke and Duchess of Cambridge on their tour of England, Wales and Scotland. (Photo by Glyn Kirk - WPA Pool/Getty Images)
WINDSOR, ENGLAND - DECEMBER 08: Prince William, Duke of Cambridge, (R) and Catherine, Duchess of Cambridge (L), wearing protective face coverings to combat the spread of the coronavirus, attend an event to thank local volunteers and key workers for the work they are doing during the coronavirus pandemic and over Christmas in the quadrangle of Windsor Castle on December 8, 2020 in Windsor, England.  The Queen and members of the royal family gave thanks to local volunteers and key workers for their work in helping others during the coronavirus pandemic and over Christmas at Windsor Castle in what was also the final stop for the Duke and Duchess of Cambridge on their tour of England, Wales and Scotland. (Photo by Glyn Kirk - WPA Pool/Getty Images)
WINDSOR, ENGLAND - DECEMBER 08: Princess Anne, Princess Royal, wearing a protective face covering to combat the spread of the coronavirus, attends an event to thank local volunteers and key workers for the work they are doing during the coronavirus pandemic and over Christmas in the quadrangle of Windsor Castle on December 8, 2020 in Windsor, England.  The Queen and members of the royal family gave thanks to local volunteers and key workers for their work in helping others during the coronavirus pandemic and over Christmas at Windsor Castle in what was also the final stop for the Duke and Duchess of Cambridge on their tour of England, Wales and Scotland. (Photo by Glyn Kirk - WPA Pool/Getty Images)
WINDSOR, ENGLAND - DECEMBER 08: Camilla, Duchess of Cornwall and Prince Charles, Prince of Wales during an event to thank local volunteers and key workers in the Quadrangle at Windsor Castle on December 8, 2020 in Windsor, England. (Photo by UK Press Pool/UK Press via Getty Images)
WINDSOR, ENGLAND - DECEMBER 08: Prince William, Duke of Cambridge, (R) and Catherine, Duchess of Cambridge, (2nd R), wearing protective face coverings to combat the spread of the coronavirus, attend an event to thank local volunteers and key workers for the work they are doing during the coronavirus pandemic and over Christmas in the quadrangle of Windsor Castle on December 8, 2020 in Windsor, England.  The Queen and members of the royal family gave thanks to local volunteers and key workers for their work in helping others during the coronavirus pandemic and over Christmas at Windsor Castle in what was also the final stop for the Duke and Duchess of Cambridge on their tour of England, Wales and Scotland. (Photo by Glyn Kirk - WPA Pool/Getty Images)