In case you missed it, Prince William and Kate Middleton have announced the name of their newest addition – Louis.
People have been torn on whether it’s pronounced ‘Lou-ee’ or ‘Lou-es’. Well, we can now confirm, it’s pronounced ‘Lou-ee’.
The name has long been a favourite with monarchies, and was especially popular with the French royals, who had 18 kings all named Louis. Marie Antoinette was married to King Louis XVI.
But it's also a family name for the British royals, too.
Prince Philip's grandfather was Prince Louis Alexander of Battenberg, and Prince Charles had a favourite great uncle named Earl Louis Mountbatten.