Bill and Melinda Gates received some happy news this week: their eldest daughter, Jennifer Gates, is engaged to be married.

The 23-year-old graduate of Stanford University confirmed on Instagram that she will wed Nayel Nassar, 28, a native of Chicago who competes in equestrian events for Egypt, the homeland of his parents. The couple have been dating for several years.

“Nayel Nassar, you are one of a kind,” the bride-to-be wrote in her post. “Absolutely swept me off my feet this past weekend, surprising me in the most meaningful location over one of our many shared passions. I can’t wait to spend the rest of our lives learning, growing, laughing and loving together. Yes a million times over.”

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Nassar posted an announcement of his own, also on Instagram.

“I’m feeling like the luckiest (and happiest) man in the world right about now,” Nassar wrote. “Jenn, you are everything I could have possibly imagined..and so much more. I can’t wait to keep growing together through this journey called life, and I simply can’t imagine mine without you anymore. Love you more than you can possibly imagine, and thank you for making every single day feel like a dream to me. Here’s to forever!”

One photo posted by the couple on Pinterest shows Jennifer wearing a very large diamond ring on her left hand. E! News described the band as “massive.”

On Jan. 1, her parents – the 64-year-old billionaire co-founder of Microsoft, and his 55-year-old wife, who now share the leadership of the Bill and Melinda Gates Foundation, a globally influential philanthropic organization – celebrated their 26th wedding anniversary.

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“New Year’s Day will always be extra special to me—marking both a fresh year and an opportunity to celebrate being married to @thisisbillgates,” Melinda wrote on Facebook. “Today makes 26, and I’m still marveling at just how full a heart can get. Happy anniversary to the man who keeps me dancing through life.”

The Gates’ other children are son Rory, 20, and daughter Phoebe, 17.