With Prince Harry and Meghan Markle tying the knot in May, and Princess Eugenie and Jack Brooksbank set to marry in October, 2018 was already shaping up to be a big year for royal weddings. Now, it’s been reported that another royal couple will be heading down the aisle later this year: Charlotte Casiraghi, granddaughter of Grace Kelly (and ninth in line to the throne of Monaco), and her boyfriend, Dimitri Rassam.

So, if there was ever a moment to invest in a series of outlandish fascinators, it seems that time is now. According to People, Charlotte and Dimitri became engaged three weeks ago while enjoying a family skiing trip in Austria with Charlotte’s mother, Princess Caroline of Monaco. At the annual Bal de la Rose in Monte Carlo on Saturday, March 24, Charlotte debuted a diamond engagement ring, paired with an equally attention-grabbing Saint Laurent gown festooned with feathers.

Though the couple has yet to confirm the happy news themselves, it has already been reported that the pair are planning a summer wedding. Hola! US even suggests that the couple might opt for a double celebration: one in Monaco and one on the Italian island of Pantelleria, where Dimitri’s mother owns 20 acres of vineyards. The couple reportedly met in Paris last year, though their mothers, Princess Caroline and French actress Carole Bouquet, are long-standing friends.

dimitri rassam and charlotte casiraghi getty images

Charlotte and Dimitri at the Rose Ball.

Earlier this month, they made their red carpet debut at the prestigious César Awards, France’s equivalent to the Oscars, after Dimitri’s film Le Brio received a nomination (he has also worked as a producer on Netflix’s The Little Prince and, more intriguingly, is slated to produce the as-yet-untitled Playmobil movie, according to his IMDb page).

Dimitri was previously married to Russian model Masha Novoselova, with whom he shares a six-year-old daughter, Dasha, while Charlotte is a mother to four-year-old Raphael from a previous relationship with comedian and actor Gad Elmaleh.

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This post was written by Katie Rosseinsky. It originally appeared on our sister site, Grazia Daily.