• Kate Middleton, 35, is pregnant with her third child with Prince William, 35
• The couple released their family Christmas card, featuring Prince George, 4, and Princess Charlotte, 2, yesterday
• The Duchess of Cambridge will join Prince Harry, 33, and Meghan Markle, 36, for Christmas with the Queen at Sandringham

Tuesday 19 December, 2017: 9:48am

Will Meghan Markle have to curtsey to Kate Middleton once she marries Prince Harry? Neither woman has royal blood - but there are strict rules and protocol to follow.

The current rules on who-curtseys-to-who were first drawn up by the Queen’s private secretary, in a document in 2005, entitled ‘Precedence Of The Royal Family To Be Observed At Court’ – its purpose was to clarify Camilla’s position in the hierarchy following her marriage to Charles.

Royal expert Christopher Wilson revealed Meghan will always be expected to curtsey to her sister-in-law, the Duchess of Cambridge.

Tuesday 19 December, 2017: 8:51am

Kate and William will take a trip to Norway and Sweden in January or February, Kensington Palace have revealed.

The palace had originally planned for William and Kate to make a short tour of Norway, Sweden and Finland in late November.

But the Swedish and Norwegian legs were moved to 2018 earlier this year as the duchess was suffering from a severe form of morning sickness - hyperemesis gravidarum - which she now appears to have recovered from.

Tuesday 19 December, 2017: 7:41am

Could the Cambridge family Christmas card reveal the sex of Kate Middleton’s baby?

All of the family were dressed in blue for the photograph, rather than a neutral colour.

The blue shade the Kate and William chose is also not particularly festive - did they choose it because it cleverly reveals the gender of their baby?

Tuesday 19 December, 2017: 6:36am

Kate and William have revealed where they will be sending Princess Charlotte to nursery next year at the same time as sharing their Christmas card.

Kensington Palace tweeted: "Their Royal Highnesses have also announed this morning that Princess Charlotte will attend the Willcocks Nursery School in London from January 2018".

Sharing the nursery's reaction, they continued: "The Willcocks Nursery School have said: 'We are delighted that The Duke and Duchess of Cambridge have chosen the Willcocks Nursery School for Princess Charlotte. We look forward to welcoming Charlotte to our nursery in January.'"

Monday 18 December, 2017: 2:14pm

2018 will be a huge year for the Royal Family, with Kate giving birth in April and Prince Harry marrying girlfriend Meghan Markle in May.

But while Kate and William will attend, not all of their children are likely to. Royal weddings tend to feature children as attendants, so Prince George, 4, and Princess Charlotte, 2, would be a pageboy and Charlotte a flower girl.

But there would be no such role for a tiny baby - and Kate is unlikely to bring her newborn for one particular reason.

As the child may not have been seen in public much yet, Kate will not want to take attention from Harry and Meghan on their special day.

Monday 18 December, 2017: 1:47pm

What will Kate and William name their third child? The most popular baby names for 2018 for both boys and girls have been predicted by Babygaga.

And there is one name on the list for girls with distinctly royal history.

Since the couple have chosen classic British names so far, they are likely to do the same again, and this name is one of the most famous British names available.