A royal by any other name would appear as non-traditional. 

Prince Harry and Meghan Markle introduced the world to the newest member of the royal family on Wednesday, after welcoming baby Sussex on May 6. And soon after their son officially met his grandmother Queen Elizabeth II for the first time, the couple announced his nameArchie Harrison Mountbatten-Windsor.

Their pick was unusual and surprising, going against many of the most popular theories for a name that is totally unique in the royal family, a rare feat. 

Or is it that rare, considering Archie is rumored to possibly be the nickname of another royal, one of the infant's cousins? 

So why did Harry and Meghan choose the name Archie, bucking the longstanding tradition of choosing a name that has been passed down through the royal family for centuries? Plus, what is Prince Harry's real name? We did some research on the sentimental and sometimes surprising meaning of some of the members of the royal family's names, including three future kings and one former king who had to change his name after his time to rule had come...

Prince George, 5th birthday

Matt Porteous/Kensington Palace/Twitter

Princess Charlotte

The Duchess of Cambridge

Prince Louis, 1 Year Portrait

Duchess of Cambridge/PA Wire

Meghan Markle, Prince Harry, Royal Baby

Dominic Lipinski/PA Wire

Prince William

Tim Rooke/REX/Shutterstock

Prince Harry, Easter Sunday Service

Ian Vogler/Daily Mirror/PA Wire

Princess Beatrice, Princess Eugenie Royal Wedding

Andrew Matthews/PA Wire

Princess Eugenie

Europa Newswire/Shutterstock

Queen Elizabeth, Christmas

Tim Rooke/Shutterstock

Prince Charles

Hagen Hopkins/Getty Images

Prince Andrew

Michel Euler-WPA Pool/Getty Imaes

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