Prince William (40) and his wife Princess Kate (41) sent royal mail. They thanked everyone who had sent Christmas greetings to the family with a card, albeit a little late. “Thank you for your thoughtful Christmas message to the Prince and Princess of Wales, Prince George, Princess Charlotte and Prince Louis,” the letter said. “Their Royal Highnesses are very grateful and send you their best wishes for a Happy New Year.”

A family picture can be seen on the card, which a user shared on Instagram and described as a “nice surprise”. The beaming parents can be seen on Christmas Day in Sandringham with their three children Prince George (9), Princess Charlotte (7) and Prince Louis (4). Other Instagram users who had apparently wished the family a Merry Christmas also shared the card in a post and reported that it had been in their mailbox for the past few days.

The photo captured a special moment for the family: Last Christmas, Prince Louis attended the Royals’ Christmas Day celebrations in Sandringham for the first time and also showed himself to the photographers and cameramen on the way to the service. He made his appearance in a dark coat and shorts traditionally worn by young royals up to the age of eight. Sister Charlotte arrived in a burgundy coat, brother George in a suit and tie.