Prince William and Kate Middleton announced royal baby number 3's name. Find out what they picked! - BabyNames.com Celebrity Baby BlogThe wait is over… Prince William and Kate Middleton have revealed their newest addition’s name!

Kensington Palace shared the highly anticipated royal baby name today, announcing: “The Duke and Duchess of Cambridge are delighted to announce that they have named their son Louis Arthur Charles. The baby will be known as His Royal Highness Prince Louis of Cambridge.”

William and Kate’s third child was born on Monday. Prince Louis joins his older siblings Prince George, 4, and Princess Charlotte, 2.

The name Louis is of German origin, meaning “famed warrior.”

His official title, according to royal historian Marlene Koenig, Town & Country reports, is His Royal Highness Prince Louis of the United Kingdom of Great Britain and Northern Ireland.

Kate Fann is the BabyNames.com celebrity blogger, as well as an established content writer, aspiring author, and social media expert. She has been featured in online publications such as Bolde, ManoByte, Medium, The Social Observer, and more. Kate has ghostwritten numerous romance novels and is currently working on publishing her own works in the Young Adult genre.

Kate lives in East Tennessee with her husband Casey and her two sons, Quinn and Noah. When she's not writing or scrolling Instagram, Kate can be found tasting delicious wines, playing with make-up, baking yummy treats, or hiking the beautiful Smoky Mountains.