'Their birthright.' What we know about Prince Archie and Princess Lilibet's new royal titles.

Prince Harry and Meghan's children have been officially recognised as Prince Archie and Princess Lilibet.

Three-year-old Archie and one-year-old Lilibet, who are sixth and seventh in line to the throne, have been named as the 'Prince' and 'Princess of Sussex' on the Royal Family's website.

In a new statement, a spokesperson for the Duke and Duchess of Sussex said, "The children's titles have been a birthright since their grandfather became monarch."

"This matter has been settled for some time in alignment with Buckingham Palace."

The siblings were previously referred to as Master Archie Mountbatten-Windsor and Miss Lilibet Mountbatten-Windsor.

Image: The Royal Family.

Their title changes come after it was confirmed Lilibet had been christened 'Princess Lilibet Diana' at a private ceremony at the couple's Californian home last week.

"I can confirm that Princess Lilibet was christened on Friday, March 3 by the bishop in the Episcopal Diocese of Los Angeles, the Rev John Taylor," a spokesperson Harry and Meghan told People.

Under royal rules, the monarch's grandchildren can become princes or princesses, meaning Lilibet and Archie were eligible to use the royal titles after their grandfather, Charles, became king, following the death of Queen Elizabeth in September. 

The titles are in line with the precedent created by letters patent issued by George V in 1917 which conferred the title of prince or princess on male line grandchildren of the sovereign.

It was not known until Wednesday whether the couple, who stepped back from royal duties in March 2020 and now live in California, would want their children to be known as prince and princess.

Image: Netflix/Youtube.

Meghan previously spoke about her son's royal title during a television interview with Oprah Winfrey two years ago. 

During the interview, Meghan said that when she was pregnant "they"- presumably the palace - "didn't want [Archie] to be a prince or a princess, not knowing what the gender would be, which would be different from protocol".

Meghan, who said she did not care about the "grandeur" surrounding the title, was also told her son would not receive security.

"The idea of our son not being safe, and also the idea of the first member of colour in this family not being titled in the same way that other grandchildren would be..."

She continued, "You know, the other piece of that conversation is, there's a convention, I forget if it was George V or George VI convention, that when you're the grandchild of the monarch, so when Harry's dad becomes king, automatically Archie and our next baby would become prince or princess, or whatever they were going to be."

"I think even with that convention I'm talking about... while I was pregnant, they said they want to change the convention for Archie."

Lilibet's baptism was held days after Harry and Meghan were asked to vacate their home in the United Kingdom, Frogmore Cottage, a decision made by King Charles.

Image: 9News

It is not known whether Harry will attend his father's upcoming coronation in May.

- With AAP. 

This article was originally published on March 9, 2023, and was updated on March 10, 2023.

Feature Image: Alexi Lubomirsk/Misan Harriman/Duke and Duchess of Sussex/9News.

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