Princess Claire and Prince Felix of Luxembourg in 2022.Photo:Patrick van Katwijk/Gett

Prince Felix of Luxembourg and Princess Claire of Luxembourg at the wedding of Princess Maria Laura and William Isvy on September 10, 2022 in Brussels, Belgium.

Patrick van Katwijk/Gett

In anannouncementposted on Monday, the royal court said, “It is with great joy that we announce the birth of our son. The prince was born on 7th January 2024 at the Maternité Grande-Duchesse Charlotte. The newborn Prince will be named Balthasar Felix Karl. He weighs 3,220 kg and measures 50 cm.”

Princess Amalia, Prince Liam, Princess Claire and Prince Felix of Luxembourg on April 29, 2023.Arnold Jerocki/WireImage

Princess Amalia, Prince Liam, HRH Prince Felix of Luxembourg and HRH Princess Claire of Luxembourg attends the religious Wedding Of Her Royal Highness Alexandra of Luxembourg & Nicolas Bagory on April 29, 2023

Arnold Jerocki/WireImage

They added, “Prince Balthasar and Princess Claire are in perfect health.”

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Prince Balthasar won’t be the only new addition to Luxembourg’s royal family. Last month, they announced thatPrincess Alexandraand her husband, Nicolas Bagory, areexpecting their first childthis spring.

Nicolas Bagory and Princess Alexandra of Luxembourg in April 2023.Sylvain Lefevre/Getty

LUXEMBOURG, LUXEMBOURG - APRIL 22: Her Royal Highness Alexandra of Luxembourg & Nicolas Bagory pose as they leave after their Civil Wedding at Luxembourg City Hall on April 22, 2023 in Luxembourg, Luxembourg. (Photo by Sylvain Lefevre/Getty Images)

The couplemarried in April 2023in Luxembourg. Areligious ceremonyoccurred a week later in Bormes-les-Mimosas, France.

“The Grand Duke, the Grand Duchess as well as the members of the two families are united in great happiness,” the court announced.

The new additions will join the line of succession with their cousins.Princes Charles, 3, andPrince Francois, 8 months, are the second and third in the order of succession to the throne (they’re the two sons of the Hereditary Grand Duke Guillaume and Princess Stéphanie). Prince Gabriel, 17, and Prince Noah, 16, are the two sons of Prince Louis and his ex-wife Tessy Antony, along with Prince Felix and Princess Claire’s now-three children.

source: people.com