Tatiana Santo Domingo with her children

Tatiana Santo Domingo gives birth to baby boy - find out which special name they've chosen

Tatiana and Andrea Casiraghi are already parents to Sacha and India

hellomagazine.com

Huge congratulations to Monaco's royal family! Princess Caroline's son, Andrea Casiraghi, and his wife, Tatiana Santo Domingo, have become parents for a third time. HELLO!'s sister publication HOLA! has confirmed that the new baby, who joins siblings Sacha and India, is a little boy named Max Rainier. The name of the couple's third child seems to be a fitting tribute to Princess Caroline's dad, Prince Rainier III, whose full name was Rainier Louis Henri Maxence Bertrand Grimaldi.

Tatiana, 34, spent the last few weeks of her pregnancy focusing on her ethical fashion label, Muzungu Sisters. In her last trimester the mother-of-two also spent time in the Swiss Alps, having travelled there in February with her family. While she took walks and relaxed, her husband and children went skiing.

The rumours about a possible pregnancy began last September when the couple posed for the cover of the French magazine Point de Vue to mark the tenth anniversary of the Motrice Foundation, Andrea's pet project. Onlookers noted that the Colombian heiress, who is the daughter-in-law of Princess Caroline of Monaco, seemed to have a fuller figure — although she tried to hide her bump under a loose-fitting dress and red velvet cape.

MORE: Princess Caroline's grandchildren star in newly released photos for Baby Dior

Her next appearance, on Monaco National Day in November, wearing an oversized red coat, did nothing to dampen speculation. Tatiana finished off her outfit with sophisticated high heels.

There was still no official confirmation of the pregnancy in December when she stepped out for a Christmas market at London's Ritz Hotel, along with her business partner in Muzungu Sisters, Dana Alikhani. After she posted photographs from the event on the label's Instagram page, followers began to send messages of congratulations.

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The duo, who married in a religious ceremony in Gstaad in 2014, welcomed their first child, son Sacha, in March 2013, and daughter India two years later in April. In both cases the births were announced in an official notice.

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