When Prince Harry and Meghan Markle are preparing to become parents for the first time, there is no doubt that the couple is brushing around the real protocol they should follow after birth.
But there is good news for the Duke and Duchess of Sussex: expectant parents will be far less restricted on the names they can choose for their child.
Although there is an undeclared rule that those who are on the line for the throne must name descendants after passed kings or other real ancestors, those who have no direct inheritance have much more freedom.
A perfect example is Sarah Ferguson and Prince Andrew, who made the real equivalent of naming their daughters Manta and Apple when choosing the names of Beatrice and Eugenie.
"The lower the succession line, the more likely it is to have a more exclusive or non-traditional name," said Carolyn Harris, author of Raising Royalty: 1,000 years of Royal Parenting, Vogue Australia.
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"We see, from the diversity of names among the queen's descendants, that the Queen appears to be willing to allow descendants to choose their own names."
However, there is still a tradition that Meghan and Harry expect to follow: waiting for several days to publicly publish their baby's name so they can count on Queen Elizabeth and the rest of the royal family.
According to the real commentator, Victoria Arbiter, the reasons for this are so they can celebrate their new arrival in private and verify that the name is appropriate.