"Grandmothers are doing well," the palace also announces about the arrival of Raphael

By Simon Perry and Peter Mikelbank
Updated December 18, 2013 08:00 AM
Credit: Pascal Le Segretain/Getty

Monaco has a new little royal.

Charlotte Casiraghi has given birth to her own little prince, named Raphael, says the palace in the principality.

Casiraghi, 27, and her boyfriend, actor-comedian Gad Elmaleh, 42, released a statement that Raphael was born in Monaco Tuesday. Sources tell PEOPLE the birth was around 9 p.m.

In a surprise “tickle,” as one source put it, the palace communiqu é added that “grandmothers are doing well.”

The baby is the second great-grandson of the late Princess Grace and the second grandson of Princess Caroline – after Andrea Casiraghi‘s son .

A Monaco palace source explains that the line about the grandmas was a “little joke from the parents.” In case anyone is wondering, mother and baby are doing well, too.

“Everyone is very happy here. It is good news,” the source tells PEOPLE.

It is the first child for equestrian and Gucci model Casiraghi and a second for Elmaleh, who is father to son Noé. The couple met via mutual friends two years ago.

Princess Caroline “gets my jokes,” Elmaleh told PEOPLE earlier this year.

Clearly thrilled about the impending birth, he added: “There’s lots of joy and excitement. I’m at a certain point in my life where building a family is very important.”