Kate Middleton's Brother James Middleton Welcomes First Baby With Wife Alizee Thevenet

Bow down to the newest member of the Middleton family.

James Middleton and wife Alizee Thevenet welcomed their first baby together, three months after Kate Middleton's younger brother announced they were expecting.

The Daily Mail confirmed the news Oct. 26, with photos of the couple out with their little one in the Notting Hill section of London.

James, dressed in a green jacket, a yellow scarf and jeans, pushed the baby stroller with a coffee cup in hand. His wife, who sported a denim outfit and brown jacket, also carried a cup of joe and a shopping bag while walking next to her husband.

No further details about the newborn, including the baby's name or sex, have been disclosed.

E! News has reached out to a rep for James and Alizee and is waiting to hear back.

Back in July, James posted a series of snaps of Alizee to Instagram sweetly cradling her baby bump as she stood next to their dog Mabel.

"We couldn't be more excited … well Mabel might be," the 36-year-old wrote. Noting they'd had a difficult start to the year after losing their other dog Ella, he added, "We will end the year with the most precious little addition to our growing family."

And turns out Ella was the reason behind James' run-in with the financial analyst in the first place.

"The two of us were at the South Kensington Club in Chelsea," he explained to The Telegraph in 2021. "Ella was lying at my feet under the table; realizing she might want some water, I trusted her to take herself to the water bowl across the terrace. However, she made a beeline for Alizee. Rather embarrassed, I went over to apologize and bring Ella back."  

And James and Alizee, who tied the knot in 2021, have been inseparable since.

"Little did I know, I had just met my future wife, all thanks to Ella," James said. "If I hadn't trusted Ella, I wouldn't have brought her to the South Kensington Club, and she wouldn't have been able to say hi to the woman who became my fiancée."

As James and Alizee bask in being new parents, keep reading to see all the other 2023 celebrity babies.

The country singer and his wife welcomed their third child—son Cohen Ace James—on Sept. 27, five months after announcing their breakup. 

In October, Jimmie's rep told People that the couple—who also share daughters Naomi and Zara—"decided to work on things together and are still together." 

The Bachelor in Paradise couple announced Sept. 23 that they welcomed their first child, a baby boy named Benson Lee Jacobs Kufrin.

Yer a mom, Ginny! The Harry Potter alum gave birth to her baby on Sept. 19. 

"Say hello to Elio Ocean Wright Lococo," she wrote in her son's birth announcement. "We’re all healthy and happy."

Fun fact: Little Elio shares the same birthday as Emma Watson's Hermione Granger character!

The model gave birth to her first child with the NFL star on Sept, 19. Named Capri Summer Godchaux, the baby girl joins older sisters Cali and Cassie, who Chanel shares with ex Sterling Shepard.

The TikToker and her husband Jonas welcomed their second child, a son named Oliver, in September.

The Vanderpump Rules alum and her husband welcomed their second child, son Messer Rhys Clark, on Sept. 7.

The Ray Donovan star became a girl dad on Aug. 27 when he welcomed baby girl Hazel Bee with Taylor Neisen. Liev is also dad to teenage sons Kai and Sasha with ex Naomi Watts.

Love all around! The retired tennis champion and the Reddit co-founder welcomed their second daughter, Adira River Ohanian, in August.

The two announced Aug. 19 that the week prior, they welcomed their third child, a baby girl.

The actress-turned-designer welcomed her first child—a baby boy named Otto—with her husband earlier this year, multiple outlets reported on Aug. 14.

The Ultimatum star and her boyfriend welcomed a baby girl on Aug. 9.

The Real Housewives of Beverly Hills alum and her fiancé welcomed daughter Elodie Mae Book on Aug. 8. The baby girl joins big sister Eliyanah, as well as Diana's adult kids Innis and Eneya from her previous marriage to Roger Jenkins.

Fifteen months after welcoming son RZA with the rapper, the "Umbrella" singer gave birth to the couple's second child, Riot Rose, on Aug. 1, according to a birth certificate obtained by E! News.

The Hills: New Beginnings star and the surfer welcomed their first child—a baby girl named Honey Raye Jenner—on July 29.

The Bachelor in Paradise couple announced the birth of their second child July 23.

The model gave birth to her second baby with businessman on July 11.

The tennis champion and her rapper boyfriend welcomed a baby girl named Shai in early July.

The rapper and her wife welcomed their first child together, a baby boy named True Legend Harris-Dupart, on July 6.

The Game of Thrones couple have welcomed their second child and first daughter, multiple outlets, citing the actor's rep, confirmed July 3.

The pro surfer, who famously lost her arm in a 2003 shark attack, announced June 30 that she and husband Adam Dirks had welcomed their fourth child and first daughter, Alaya Dorothy Dirks.

After a decade-long fertility journey, the longtime couple welcomed daughter Athena Alexandra via surrogate on June 23.

The Olympic swimmer and the real estate agent welcomed their third child together, baby girl Georgia June, on June 21, according to Us Weekly.

The Ginny & Georgia star welcomed her first child with husband Matt Ziering in June.

"My whole world just got a whole lot sweeter. And smaller," she wrote on Instagram June 18 alongside a photo of their newborn. "Welcome my little love."

The Duck Dynasty alum and her husband welcomed their second daughter, Haven, in May 2023. She joined big sister Honey James, 2.

The Dancing With the Stars pro gave birth to son Jet Carson McAllister, her second child with her husband, on May 13.

After suffering a stillbirth and a miscarriage, the Selling Sunset star and her husband announced on May 11 that they had welcomed their rainbow baby, a daughter named Emma Reign.

The Below Deck alum announced she welcomed her first child, a baby boy named Sullivan Cay, on May 5.

The Dancing With the Stars pro shared on May 4 that she and her husband had welcomed their second daughter together.

Bruce Willis and Demi Moore became grandparents on April 18, when their oldest daughter welcomed daughter Louetta Isley Thomas Willis with her musician boyfriend.

On April 11, the Bling Empire star announced the expansion of her own empire by sharing that she and her boyfriend had welcomed a baby girl.