Most teenagers celebrate a birthday with cake and candles. Knox Jolie-Pitt, the son of Angelina Jolie and Brad Pitt, chose to mark his 17th with a Muay Thai competition—and walked away with a medal. Here’s a fact-checked look at what we know about the young man born into one of Hollywood’s most scrutinized families.

Full name: Knox Leon Jolie-Pitt · Birth date: July 12, 2008 · Age (2025): 17 · Parents: Angelina Jolie and Brad Pitt · Siblings: 5 (Maddox, Pax, Zahara, Shiloh, Vivienne) · Twin sister: Vivienne Marcheline Jolie-Pitt

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact height (not publicly disclosed)
  • Precise nature of relationship with Brad Pitt (publicly unconfirmed)
  • Whether the Instagram account @knoxleonpitt is official
  • Knox’s educational institution and future career plans
  • Whether Knox speaks French (not confirmed by any source)
  • Knox’s specific involvement in other sports or hobbies
3Timeline signal
  • July 12, 2008: Born in Nice, France (People)
  • 2016: Parents separate (TMZ)
  • July 2025: Muay Thai competition win (Newsweek)
  • 2025: Attended Governor’s Ball with mother (TMZ)
4What’s next

Seven key facts establish the baseline for anyone trying to understand who Knox Jolie-Pitt is.

Attribute Value
Full name Knox Leon Jolie-Pitt
Birth date July 12, 2008
Age (as of 2025) 17
Nationality American
Parents Angelina Jolie, Brad Pitt
Siblings Maddox, Pax, Zahara, Shiloh, Vivienne (twin)
Height Not publicly disclosed

Is Knox a boy?

Yes — Knox is male, a point sometimes confused because of his unique name. Here’s what the records show.

What is Knox Jolie-Pitt’s full name?

  • His full name is Knox Leon Jolie-Pitt, as recorded in multiple biographical sources (People).

How old is Knox Jolie-Pitt?

  • Born on July 12, 2008, he turned 17 in July 2025 (Newsweek).

How tall is Knox Jolie-Pitt?

  • His height is not publicly disclosed, and no reliable source provides a figure.

Is Knox Jolie-Pitt adopted?

  • No. He is the biological child of Angelina Jolie and Brad Pitt (People). His older siblings Maddox, Pax, and Zahara were adopted; Knox and his twin Vivienne are the only biological children of the couple.
Bottom line: Knox is a 17-year-old biological son of Jolie and Pitt. His height remains unknown, but his basic biography is well-documented.

The implication: Knox’s basic identity is clearly documented, but many details remain private.

Are Knox and Vivienne twins?

Yes — Knox and Vivienne are fraternal twins, born on the same day in the south of France.

Who are Knox’s siblings?

  • Knox has five siblings: older brothers Maddox (adopted from Cambodia), Pax (adopted from Vietnam), older sister Zahara (adopted from Ethiopia), older sister Shiloh (biological), and twin sister Vivienne (biological) (People).

Where were Knox and Vivienne born?

  • They were born in Nice, France, on July 12, 2008 (TMZ).

Are Knox and Vivienne identical twins?

  • No, they are fraternal (dizygotic) twins, meaning they do not share the same genetic makeup beyond what siblings share (People).
Bottom line: The Jolie-Pitt twins are fraternal, born in France, and part of a six-child family that includes both adopted and biological siblings.

The pattern: The Jolie-Pitt family structure reflects both biological and adopted children, with the twins born in France.

Does Brad Pitt see his son Knox?

The relationship between Knox and his father is a subject of public curiosity, especially after the long-running custody proceedings between Brad Pitt and Angelina Jolie.

What happened at Knox’s 17th birthday?

  • On or around his 17th birthday in July 2025, Knox competed in an IKF Point Muay Thai Technical event held on the USC campus. He won a medal, and his mother Angelina Jolie and twin sister Vivienne were present cheering him on (TMZ).

Did Knox win a medal?

  • Yes, multiple outlets confirmed that Knox won a medal at the Muay Thai competition, which was part of his birthday celebration (Newsweek; People).

Why did Angelina bring Knox to the Governor’s Ball?

  • In 2025, Knox accompanied his mother to the Governor’s Ball, a high-profile New York event. The appearance drew media attention, with some outlets noting it as one of Knox’s rare public red-carpet moments (The New York Times (major newspaper)).

Does Knox look like Brad Pitt?

  • Media coverage frequently notes Knox’s resemblance to his father. He has been described as “looking just like his dad” in headlines, with photos comparing facial features (TMZ).

What to watch

Brad Pitt did not appear at the Muay Thai event. While both parents have stated they prioritize their children’s well-being, the public absence on a milestone birthday signals the ongoing strain post-divorce.

Bottom line: Knox’s relationship with Brad Pitt appears distant based on public evidence. His closest family bond visible in media is with his mother and twin sister, who supported him at his birthday competition.

What this means: Public appearances suggest Knox maintains a closer bond with his mother and twin sister, while his father’s absence at key events indicates ongoing distance.

Timeline

  • July 12, 2008: Knox Leon Jolie-Pitt born in Nice, France, to Angelina Jolie and Brad Pitt; twin sister Vivienne born same day (People).
  • 2016: Angelina Jolie files for divorce from Brad Pitt; Knox and siblings primarily live with mother (TMZ).
  • July 2025: Knox turns 17; participates in IKF Point Muay Thai event, wins medal; mother attends, father absent (Newsweek).
  • 2025: Knox accompanies mother Angelina Jolie to the Governor’s Ball, sparking media attention (The New York Times).

Confirmed facts

  • Knox is male and the biological child of Angelina Jolie and Brad Pitt.
  • Knox and Vivienne are fraternal twins.
  • Knox was born on July 12, 2008 in Nice, France.
  • Knox is 17 as of 2025.
  • Brad Pitt and Angelina Jolie are divorced.
  • Knox won a Muay Thai medal on his 17th birthday.

What remains unclear

  • Exact height of Knox.
  • Precise nature of relationship with Brad Pitt (publicly unconfirmed).
  • Whether the Instagram account @knoxleonpitt is official.
  • Knox’s educational institution and future career plans.
  • Whether Knox speaks French (not confirmed by any source).
  • Knox’s specific involvement in other sports or hobbies.

Quotes and perspectives

“Angelina Jolie and Brad Pitt’s Son, Knox, 17, Looks Just Like His Dad at… He could be his father’s clone.”

Yahoo Entertainment (news aggregator), citing photo comparisons

“Knox Jolie-Pitt celebrated his 17th birthday with a Muay Thai victory — and his mother Angelina Jolie was ring side cheering him on. Brad Pitt was noticeably absent.”

Facebook post by PopIcons, as summarized by TMZ

“Baidu Baike lists the verified biographical details: Knox Leon Jolie-Pitt, born July 12, 2008, twin of Vivienne, children of Angelina Jolie and Brad Pitt.”

Baidu Baike (Chinese online encyclopedia)

For a teenager who grew up in the glare of paparazzi lenses, Knox’s 2025 birthday signals something bigger than a sports medal. He chose a martial arts competition over a conventional party, his mother and sister in the front row, his father absent. The trade-off for a family fractured by a high-profile divorce is that every public moment becomes evidence — but for Knox, the emerging story is one of carving his own path, one kick at a time.

Additional sources

youtube.com

For a more detailed family update on Knox, readers can check out detailed family update on Knox, which covers his 2024 milestones and background.

Frequently asked questions

Where did Knox attend school?

His educational institution is not publicly known. The family has kept details of their children’s schooling private.

Does Knox have an Instagram account?

An account under the handle @knoxleonpitt exists, but it has not been verified as official by any family member or representative.

What sports does Knox practice?

He competes in Muay Thai, as evidenced by his IKF tournament medal in July 2025 (TMZ).

Has Knox expressed interest in acting?

No — unlike some of his siblings, Knox has not appeared in any film or public acting role.

What is Knox’s zodiac sign?

Born July 12, he is a Cancer (astrological sign).

Does Knox speak French?

Given his birth in Nice, France and time spent there, it is possible he speaks French, but no source has confirmed his language abilities.