There's a new royal baby on the way: Charlotte Casiraghi is expecting her first child. You may remember that the stylish 31-year-old, who is Princess Caroline of Monaco's daughter and Grace Kelly's granddaughter, debuted her engagement ring on the red carpet back in March. Now, she's made yet another debut at a public event—this time with her baby bump clad in a pretty, metallic halter dress.
People confirmed the news that Casiraghi is expecting a baby with her fiancé, French film producer Dimitri Rassam. No word yet on when the wedding will happen, but it's safe to say it will be an incredibly stylish affair. Scroll down to see Casiraghi's maternity debut and shop the halter trend (which has also been championed by none other than Meghan Markle).