Prince George is about to start school. And there's one question on the teachers' lips.

With Prince George‘s first day at primary school just around the corner, an important royal question has been raised: what on earth will the future King of England’s surname be?

As is royal tradition, four-year-old George doesn’t actually need a surname on account of being in line to the throne. But in the interest of being just a regular kid (with a crown awaiting him in the distant future), he is set to adopt a surname for the school register for his teachers and classmates to know him by from September.

Sadly, Middleton is out (sorry Carole), and His Royal Highness has been deemed too much of a mouthful for the kindergarten kids, so it’s likely he’ll either opt for Cambridge, taken from William’s title as the Duke of Cambridge, or Mountbatten-Windsor, the hyphenated name created for Queen Elizabeth II and Prince Philip’s children.

According to the Royal Family’s official website, the latter is the more common and preferred option.

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“For the most part, members of the Royal Family who are entitled to the style and dignity of HRH Prince or Princess do not need a surname, but if at any time any of them do need a surname (such as upon marriage), that surname is Mountbatten-Windsor,” the website states.

But when both Princes William and Harry attended primary school, they assumed the surname Wales, after their father Prince Charles’ title, the Prince of Wales – not Mountbatten-Windsor. So where this surname story goes is really anyone’s guess.

prince george surname
The stress of it all. Image; Getty.

But one thing is for sure, we cannot bloody wait to see photos of Prince George in a school uniform.

Oh, and to the teacher of Thomas's in Battersea entrusted with caring for the unruly Prince's early learning from September, good luck.