Kate Middleton

Kate Middleton, Duchess of Cambridge, and Prince William have no doubt received plenty of congratulatory cards over the last six months following the birth of baby Prince George but with the festive serason having arrived, they no doubt have to return the favour by sending out Christmas cards to their nearest and dearest - but just who will be lucky enough to make it onto their list?

The couple will be joining a large number of the royal family including HM the Queen, the Duke of Edinburgh, Prince Charles, Camilla, the Duchess of Cornwall and William's brother Prince Harry at the royal estate of Sandringham in Norfolk for Christmas lunch tomorrow where they will no doubt exchange presents and of course, the all important Christmas cards!

Prince William and Kate Middleton, the Duchess of Cambridge are spending Christmas at Sandringham (WENN)

It may be a little awkward if someone's left out at the grand dinner table, so let's take a look at who Kate and Wills will include on their list...

Zara Phillips and Mike Tindall

The royal couple are known to be close pals with Prince Williams' cousin Zara and her rugby star hubby Mike so you can bet your money that they will be presenting them with a festive card and maybe even a present - with Zara expecting the couple's first child and Kate no doubt broody after giving birth to Prince George in June, it's possible that a baby-related gift may be on the cards!

Will parents-to-be Zara Phillips and Mike Tindall be on the royal couple's Christmas card list? (Paul Terry/WENN)Cressida Bonas

With reports that Prince Harry's rumoured girlfriend will be spending Christmas Day with her own family, it's unlikely that Cressida will be making an appearance around the table at Sandringham but with the Prince and Duchess' close relationship with Harry, we're betting that if he really IS dating Cressida, she'll be near the top of their list.

Is Cressida's rumoured romance with Prince Harry enough to get her on the list? (WENN)Thomas Van Straubenzee

Prince William has been close friends with Straubenzee since their childhood and the royal attended his pal's wedding this summer along with brother Prince Harry, and while Kate was unable to attend due to being heavily pregnant with Prince George at the time, she'll most likely want to pop a card in the post to the newlyweds. Find out who else we suspect will make the Christmas list in the video above!