Andrea, who is the son of Princess Caroline and eldest grandchild of Hollywood star Grace Kelly, married heiress Tatiana during a civil ceremony in August 2013, but the pair decided to re-marry on Valentine's Day last year in a romantic eleventh century Rougemont Church.
The couple, who already share one son, Alexandre, known as Sacha, have just become the proud parents of a baby daughter who is now seventh-in-line to the Monaco throne.
Having announced their pregnancy in November 2014, the overjoyed couple finally met the new addition to their family in a London hospital on Sunday evening.
This isn't the only baby news to be celebrated by the royal family in recent months, with Andrea's uncle, Prince Albert, welcoming twins earlier this year!
Many congratulations to the new family!
