The pair announced in January 2020 that he popped the question during a snowy ski trip
Jennifer Gates Nayel Nassar
Jennifer Gates and Nayel Nassar
| Credit: Nayel Nassar/Instagram

Jennifer Gates has said "I do."

The eldest daughter of billionaire businessman Bill Gates and Melinda French Gates tied the knot with longtime love Nayel Nassar in Westchester County this weekend, PEOPLE can confirm.

"It will be a big wedding," a source previously told PEOPLE. "They both seem very excited about their wedding week."

The couple announced their engagement in January 2020. Jennifer, 25, and Nassar, 30, both shared the exciting news on their Instagram accounts alongside photos of her overjoyed reaction — and new diamond ring — taken after the ski trip proposal.

So who is Jennifer's husband? Here's everything to know about Nassar.

Listen to the latest episode of our daily podcast PEOPLE Every Day for more on Jennifer Gates' upcoming wedding.

1. He was born in the United States to millionaire parents and grew up in Kuwait.

Though he was born in Chicago, according to his Global Champions League biography, Nassar was raised in Kuwait.

He was reported to have had a "wealthy upbringing" by his parents, who run an architecture and design firm in the country, and relocated to the U.S. in 2009, according to Al Arabiya English and Emirates Woman.

In December 2017, Nassar and Jennifer returned to the country in western Asia for a visit ahead of the holidays — and according to Nassar, the trip was incredibly meaningful.

"Memorable times in Kuwait last week with family and old friends. Got to bring Jenn home and give her a glimpse of my childhood," he wrote on Instagram beside photos of their vacation. "It meant the world to me. Needless to say, she was loved by all..including Jerry."

2. He's an accomplished Egyptian equestrian who competed in the Tokyo Olympics 

Because Nassar's parents are from Egypt, he has been able to ride in equestrian competitions for the country, according to Global Champions League biography.

The athlete began the sport at age 5 and was jumping by age 10, his biography states. Since then, he has gone on to qualify for the FEI World Cup Finals in 2013, 2014 and 2017, plus the FEI World Equestrian Games in 2014.

He has also taken first place in a number of competitions, including Longines FEI Jumping World Cup Las Vegas, Las Vegas National Horse Show Winning Round CSI 3*, Longines FEI Jumping World Cup Del Mar, New York Masters CSI5* Grand Prix, and Rabat CSIO4* Designated Olympic Qualifier, according to his bio.

Jennifer Gates Nayel Nassar
Jennifer Gates and Nayel Nassar
| Credit: Nayel Nassar/Instagram

Nassar, who competes in show jumping, helped Egypt qualify for the Tokyo Olympics. The accomplishment marked the first time in 61 years that Egypt's equestrian team had qualified for the Olympics.

Although Nassar didn't end up winning a medal, he did receive a pair of sweet shout-outs from his future in-laws.

"I always love watching the Olympics. The #TokyoOlympics are particularly special because I get to cheer on my future son-in-law, @nayelnassar! We are so proud of you, Nayel (and Igor)!" Melinda wrote, making sure to share the love with the equestrian's horse.  

"I'm rooting for lots of the athletes in Tokyo right now—but none more than my soon-to-be son-in-law, @nayelnassar," Bill added in a separate message. "Good luck, Nayel!"

The International Federation for Equestrian Sports currently ranks Nassar as No. 44 in the world, with 48 jumping competition wins under his belt since 2010.

26 July 2019, Berlin: Equestrian sports/jumping: Global Champions Tour: Nayel Nassar on the horse Lucifer V jumps over an obstacle during the opening jump.
Nayel Nassar
| Credit: Britta Pedersen/picture alliance via Getty

3. He's a graduate of Stanford University.

Like his now-wife, Nassar attended the Northern California university. He graduated from Stanford in 2013 with a degree in economics, according to his Global Champions League biography.

Impressively, Nassar is fluent in Arabic, French, and English, the biography states.

In June 2018, he returned to the university to support Jennifer when she earned her own degree in human biology, according to her LinkedIn page.

"Lucky me, she’s beautiful and has a Stanford degree! ?? Congratulations love, on all you've achieved these last 4 years. Can't wait to continue this wonderful journey with you ☺️ #stanfordgrad2018 #beenthere #classof2013 #imgettingold," he captioned a shot of the couple at her graduation.

Nayel Nasser Jennifer Gates
Nayel Nassar and Jennifer Gates
| Credit: Nayel Nasser/Instagram

His romantic relationship with Jennifer began in January 2017

Nassar's first Instagram photo with Jennifer came in February 2017 and featured the pair enjoying a Valentine's Day dinner in Miami Beach, Florida.

However, according to his and Jennifer's Instagrams, the pair officially started dating the month prior.

On their one-year anniversary in January 2018, Jennifer shared a photo of her kissing her man on the cheek and jokingly wrote beside it, "Nobody rly knows whether our official ~dating anniversary~ is today or yesterday but that's ok… happy to be yours every day."

Nassar also shared a similar shot of him kissing Jennifer on the head and captioned it, "Happy first year my love! Here's to many more.. ❤️❤️."

Jennifer, who is also an accomplished equestrian, previously said their love for the sport was part of what bonded them together.

"Horses are just one part of our life, but we love the sport," she told CNN's EQ equestrian show in 2019. "He's a professional, and I do this as an amateur. So, to be able to share our love and passion for horses with each other is just incredible."

Nayel Nasser Jennifer Gates
Nayel Nassar and Jennifer Gates
| Credit: Jennifer Gates/Instagram

In Jennifer's engagement announcement post, she called Nassar "one of a kind" and raved about his romantic proposal.

"Absolutely swept me off my feet this past weekend, surprising me in the most meaningful location over one of our many shared passions," she captioned the sweet shot. "I can't wait to spend the rest of our lives learning, growing, laughing and loving together. Yes a million times over."

Nassar also posted photos of the proposal on his own Instagram account, writing, "SHE SAID YES!!"

"I'm feeling like the luckiest (and happiest) man in the world right about now," he captioned his pictures. "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!"

The couple received many congratulatory wishes from their friends and family, including Jennifer's proud parents.

"So thrilled for you and @nayelnassar! ❤," wrote mom Melinda, 57, who also shared the sweet proposal photo on her Instagram Story.

"I am completely thrilled! Congratulations, @jenniferkgates and @nayelnassar!" added her father Bill, 65, in the comment section.