Andrea Casiraghi, Tatiana Santo Domingo
Photo: Getty

While we were so focused on the arrival of Great Britain’s royal baby, we completely overlooked the birth of another little prince in Monaco. Andrea Casiraghi (nephew of Monaco’s reigning monarch, Prince Albert, AKA Grace Kelly’s son) and his wife Tatiana Santo Domingo welcomed their third child last Thursday, April 19, People confirms. (Previous reports from Hola! said the baby was born on April 21.)

Like Prince William and Kate, the happy parents welcomed a little boy. His name is Maximilian Rainier—an homage to Prince Rainier III of Monaco (Grace Kelly’s husband). People reports the days-old prince is seventh in line for the throne, after his two older siblings, five-year-old Alexander “Sacha” and three-year-old India.

Related article: Coco Rocha Gives Birth To Baby Number Two

Andrea Casiraghi, Tatiana Santo Domingo, Sacha Casiraghi, Andrea Casiraghi, India Casiraghi,
Princess Caroline of Hanover (Andrea’s mom), Sacha Casiraghi, Andrea Casiraghi, India Casiraghi, and Tatiana Santo Domingo in 2016 Photo: Getty

Casiraghi, 33, and Santo Domingo, 34, wed in August 2013 and currently live in London. They’ve kept out of the public eye during this pregnancy, People reports. But they did attend Monaco’s National Day in November and were later seen shopping for baby gear near their British home base.

Princess Caroline of Hanover, Andrea’s mother (and Grace Kelly’s eldest child), and Madame Vera Santo Domingo, Tatiana’s mother, have expressed their “joy” over their new grandson in a statement from the palace, People adds.

Related Article: Duke and Duchess of Cambridge Welcomes Royal Baby Number 3

Andrea Casiraghi, Tatiana Santo Domingo
The Casiraghis at the Monaco Formula 1 Grand Prix in 2017 Photo: Getty

Casiraghi and Santo Domingo aren’t the only ones welcoming a new addition Monaco’s royal family. Pierre Casiraghi (Andrea’s 30-year-old brother) and his wife Beatrice Borromeo are expecting their second child in May. The two are already parents to one-year-old Stefano.

Related article: Comparing Kate Middleton’s First Appearance With Royal Baby No. 3 To Past Debuts

There are also rumours that Pierre and Andrea’s sister, Charlotte Casiraghi, is pregnant with her first child. She’s reportedly tying the knot to her producer boyfriend Dimitri Rassam this year, too.

This article originally appeared on Harper’s BAZAAR US