Following their nuptials earlier this year it's very possible that the new Duke and Duchess of Sussex are thinking about babies.
Both Prince Harry and Meghan Markle have previously spoken about their desire to have a family.
But should any tiny Royals arrive for the couple, there'll be one noticeable difference between them and their cousins George, Louis and Charlotte.
Because they will likely have different last names.
Despite them all historically sharing the last name Mountbatten-Windsor, as direct descendants of The Queen, it is most likely they will take the name Sussex.
When William and Harry were at school, they were known as William and Harry Wales - a consequence of their dad being Prince Charles of Wales.
And Kensington Palace confirmed George would be known as George Cambridge on the school register - his dad is Prince William, Duke of Cambridge.
So it's likely any future children Harry and Meghan have will adopt the last name Sussex.
We previously explained why Royals have the last names they do - and revealed The Royal Family did not even use last names until 1917.
This story originally appeared in The Sun.