The Duke and Duchess of Cambridge have finally revealed that their newborn prince is named Louis Arthur Charles. But as regal as the moniker may sound, it left some royal fans across the pond questioning: How do you pronounce the baby's first name?

Luckily, royal commentators and reporters from the UK cleared the air. It's "loo-wee," with a silent "s," like Louis Vuitton or Louis Armstrong.

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Louis means "famous in battle" or "famous warrior" and originates from Germany and France. Though most might associate the regal name with the French monarchy, the moniker has been running in the British royal family for generations, in more subtle ways.

The newborn's big brother Prince George's full name is George Alexander Louis, and his father Prince William's full name is William Arthur Philip Louis. The Duke of Cambridge's uncle Prince Edward's full name is Edward Antony Richard Louis. His youngest child is Lady Louise Windsor, a close match to her days-old nephew.

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Although Louis wasn't named after his great-grandfather Prince Philip like British betters had hoped, his name is still significant with the Duke of Edinburgh's side of the family. There's Louis Mountbatten, the last viceroy of India and Philip's uncle, and Prince Louis of Battenberg, Philip's grandfather, BBC reports.

Prince Louis—whose full, official title is His Royal Highness Prince Louis Arthur Charles of Cambridge—is fifth in line to the throne, following his older siblings, Prince George and Princess Charlotte.

From: Harper's BAZAAR US