Prince Charlene and Prince Albert II of Monaco welcomed twins earlier this week — and now their babies' names have been revealed!

Princess Gabriella Thérèse Marie was born first followed by her brother, Prince Jacques Honoré Rainier, at Princess Grace Hospital in Monaco on Wednesday, Dec. 10.

Though Princess Gabriella was born two minutes ahead of her brother, Monaco's laws of succession give pride of royal inheritance to the firstborn son. That means Prince Jacques — though technically younger — will ascend to the throne when his father either abdicates or passes away.

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Charlene and Albert at their 2011 royal wedding.

In 2011, the English monarchy famously changed its long-standing succession rules — which previously stated the monarch's firstborn son was the heir apparent — to allow for a royal couple's daughter to ascend to the throne if she is their eldest child.

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This means had Prince William and Kate Middleton welcomed a girl in 2013 (they, of course, had a son, Prince George), she would have been Queen one day.

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Charlene and Albert in April 2014.

Princess Gabriella and Prince Jacques are the first children born to the 36-year-old Princess Charlene and Prince Albert II, 56, though he has two older daughters from two previous relationships.

Albert — whose parents were the late Princess Grace Kelly and Prince Rainier III of Monaco — and Charlene got engaged in June 2010, married in a lavish royal ceremony in July 2011 and announced they were expecting in May.