Prince William and Kate Middleton have finally revealed the royal baby’s name.

Kensington Palace announced in a statement overnight the newborn prince’s name is Louis [pronounced Loo-ee].

“The Duke and Duchess of Cambridge are delighted to announce that they have named their son Louis Arthur Charles,” the statement said.

“The baby will be known as His Royal Highness Prince Louis of Cambridge.”

While the choice of Louis stunned bookmakers, who were predicting Arthur or Albert, Louis is rooted in tradition for the British royal family (French as it sounds).

Prince Charles’ beloved great-uncle, Earl Louis Mountbatten, was assassinated by the IRA in 1979 at the age of 79 when they placed a bomb in his fishing boat.

Prince William and his son, Prince George both have Louis as part of their full names, so there’s plenty of family connection there.

Louis, born on Monday, is the couple’s third child after Prince George, four, and Princess Charlotte, two, and fifth in line to the throne. For the first time in British royal history, he does not overtake his sister in succession to the throne following a change to the law in 2013. Previously, male royals overtook their female siblings.