Along with the photo came a brief message.
“The Duke and Duchess are delighted to share a new image of their family, which features on their Christmas card this year,” the tweet read.
The note concluded with a Christmas tree emoji and offered credit for the photo to photographer Matt Porteous.
The photographer also shared the image on his own Instagram and posted a brief quote.
“It was an honour to photograph The Duke and Duchess of Cambridge and their family,” hy het geskryf. “Capturing the fun and relaxed moments between such a wonderful family is always a true privilege.”
Fans of the royal family were pleased with the photo.
“Thank you for posting this picture, such a beautiful family,” wrote a Twitter user. “This is everything and more, look at how big the kids have got.”
“Omg this picture is super beautiful and cute!!!! My goodness how I love this little family so much,” het 'n ander geskryf. “thank you [Kensington Palace] for releasing it.”
A third complimented: “I can’t get over how breathtakingly gorgeous the Duchess always looks. It’s like she was born for this.”
While the family of five are preparing to celebrate the coming holiday with one another, it was reported last month that the royal family as a whole will likely be separated for Christmas this year.