Along with the likes of Béyonce, Madonna, and Adele, the Royal Family don't use their surname, meaning most people probably don't have a clue what it is.
Which is probably why The Independent did some digging on the Royals' official website. Until the early 20th century, the family actually had no last name at
The website states:
"The names of dynasties tended to change when the line of succession was taken by a rival faction within the family (for example, Henry IV and the Lancastrians, Edward IV and the Yorkists, Henry VII and the Tudors), or when succession passed to a different family branch through females (for example, Henry II and the Angevins, James I and the Stuarts, George I and the Hanoverians)."
It was only when King George V came
The official site adds:
"The effect of the declaration was that all The Queen's children, on occasions when they needed a surname, would have the surname Mountbatten-Windsor.
Unless The Prince of Wales chooses to alter the present decisions when he becomes king, he will continue to be of the House of Windsor and his grandchildren will use the surname Mountbatten-Windsor."
This story originally appeared on Townandcountrymag.com.
* Minor edits have been made by the Townandcountry.ph editors.