Meet Kate Middleton's brother, James, who is expecting his first child with wife Alizee Thevenet

When news outlets were first reporting Kate and Prince William's budding romance, James Middleton took extreme measures to minimize rumors and chatter.

"I used to be first up in the morning to make sure I could get to the papers and rip out any stories about my sister, so nobody would see them and there would be no conversations about them," he told the Daily Mail in 2016.

Like his sisters, Middleton attended Marlborough College, a private boarding school that has many famous alumni, including Princess Eugenie.

"I knew that that mouthful of academic prescription was not going to do it for me," he told British GQ, according to a 2012 article. "My dream, which came to me when I was flying back up to Edinburgh after a weekend home, was to build a cake empire."

Middleton's cake company dissolved in May 2015.

Kate and William tied the knot at Westminster Abbey in London on April 29, 2011.

At the time, Middleton was 23 years old.

Around this time, Pippa and James Middleton were frequently photographed together in public. At the time, the two shared an apartment, according to British GQ.

Donna Air has a 19-year-old daughter named Freya from a previous relationship. In 2016, Middleton told the Daily Mail, "I love Donna very much and Freya is very much part of Donna. I love them both equally."

"My mother looks at it and says, 'When are you going to get rid of it?'" he told the Daily Mail. "But then that's because she wants me to be her little boy."

Boomf launched as a service that allowed customers to print graphics and personal photos on marshmallows.

Speaking about his company to The Cut in 2014, Middleton said, "When you see yourself on a marshmallow, or your loved one or your pet, you have a little moment with that little marshmallow. There aren't many products in the world like that."

He told digital magazine TYD in 2015 that while he has a famous sister, he's not coasting on her success as an entrepreneur.

"I work incredibly hard — just like every other person in business," he said. "Aside from the fact that yes, I am the brother of someone very important, I am, at the end of the day, just James."

According to a press release, he sold the company to a consortium of investors in 2022.

In February 2018, she told the Daily Mail: "James and I are no longer an item. We parted ways in December but remain the very best of friends and always will be."

According to the Daily Mail, the youngest Middleton sibling was hired as a tour guide at the Glen Affric Lodge near Loch Ness in Scotland.

The hotel is owned by David Matthews, the father of Pippa's husband, James Matthews, who works as a hedge fund manager. Pippa and her husband wed in 2017 and have three children.

"The countryside is where I'm at my happiest and I'll be taking my four dogs to Glen Affric with me," James Middleton told The Telegraph in 2018.

In January 2019, the Daily Mail reported that Middleton had been in a relationship with Alizee Thevenet for six months, according to Thevenet's father, Jean-Gabriel Thevenet.

Jean-Gabriel told the Daily Mail that his daughter is "deliriously happy" and that the couple is "very much in love."

According to an unnamed family friend, Middleton and Alizee Thevenet met in a bar when he "offered her a drink."

Thevenet has an undergraduate degree in accounting and finance, as well as a master's degree in investment and finance, the Daily Mail reported.

"I just want to be the best uncle possible," he once told "Good Morning America." "Like any uncle wants to be, I want to be the cool uncle. The fun uncle. That's what sort of I'll always try and be."

He has also said that "vintage tractor magazines" are his guilty pleasure.

His personal Instagram made headlines in 2019, after the Daily Mail reported that his account had been "unearthed."

Although it's not clear whether the Boomf founder had just made his profile public, or if it was just discovered, it appears Middleton had been posting under the username, jmidy, from as early as July 2013.

Judging by his Instagram, he is particularly fond of animals. The youngest Middleton sibling often posts photos of numerous dogs, lambs, chickens, and more.

He also seems to be an avid outdoorsman, sharing photos and videos of himself doing everything from wakeboarding and hiking to sailing and cross-country skiing.

"A few years back, my dogs helped pull me out of a really difficult battle with depression," Middleton wrote on Ella & Co's website. "When I reached the other side, I set out on a mission to make their lives just as happy and as healthy as they've made mine, starting with the food they eat."

"We couldn't be more excited … well Mable might be," Middleton captioned a photo of Thevenet holding her baby bump with their dog Mable. "It was a very difficult start to the year after losing my beloved Ella however we will end the year with the most precious little addition to our growing family."