But now, a second family photo has been revealed, and it is just as sweet as the first!
The picture was taken after Prince Lous' christening in July last year and shows a more intimate side to the royal family.
The card draws special attention to a very cheeky looking Prince George, as well as a happy looking Princess Charlotte.
The image shows an absolutely enamoured kate beaming down at a tiny Prince Louis in her arms, while William grins at the camera.
A far cry from the sometimes rigid pose the Cambridge family adopt in some of their more official family portraits, this photo feels like you could be looking at any loving family.
The photo was shared to Instagram by a royal fan after they received the card from the Duke and Duchess of Cambridge earlier this week.
The caption of the post reads, "Fantastic reply from the Cambridges thanking me for sending my Christmas and New year wishes."