Elon Musk's Expanding Family: A Comprehensive Profile of His 14 Children

Elon Musk, the billionaire entrepreneur behind Tesla, SpaceX, and X (formerly Twitter), has garnered attention not only for his business ventures but also for his growing family. As of March 2025, Musk is father to 14 children with four different women, spanning over two decades of parenthood. This report examines Musk's children chronologically, their mothers, and the complex family dynamics that have developed over the years.

Children with Justine Wilson

Elon Musk's journey into fatherhood began with his first wife, Canadian author Justine Wilson, whom he married in 2000. Together, they experienced both tragedy and the joy of multiple births.

Nevada Alexander Musk

In 2002, Musk and Wilson welcomed their first child, Nevada Alexander Musk. Tragically, Nevada passed away at just 10 weeks old from Sudden Infant Death Syndrome (SIDS)1. Wilson later wrote about this devastating experience in a Marie Claire essay, describing how Nevada "went down for a nap, placed on his back as always, and stopped breathing"1. After three days on life support, they made the heartbreaking decision to remove him from it, with Wilson holding him in her arms as he died1.

Griffin Musk and Vivian Jenna Wilson

Following the loss of Nevada, Musk and Wilson turned to IVF and welcomed twins in April 200419. Originally named Griffin and Xavier Musk, their lives took different paths as they grew. While Griffin retained his birth name, Xavier came out as transgender in 2022 and legally changed her name to Vivian Jenna Wilson9. In her filing, Vivian stated, "I no longer live with or wish to be related to my biological father in any way, shape or form"9, taking her mother's surname in the process. The twins are now 20 years old1.

Kai, Saxon, and Damian Musk

In January 2006, Musk and Wilson welcomed triplet sons—Kai, Saxon, and Damian—also conceived through IVF19. The triplets turned 18 in 20241. Following Musk and Wilson's divorce in 2008, custody of all five surviving children was split evenly between them1. Musk noted in a 2010 Business Insider op-ed that he paid Wilson $20,000 monthly in child support, plus additional funds for living expenses and nannies1.

Children with Grimes

After his marriage to actress Talulah Riley (they married and divorced twice but had no children together), Musk began a relationship with Canadian musician Claire Boucher, professionally known as Grimes, leading to three more additions to his family.

X Æ A-XII Musk

On May 4, 2020, Musk and Grimes welcomed their first child together, initially named X Æ A-1219. Due to California naming regulations that prohibit special characters and numbers in legal names, they modified it to X Æ A-XII1. The unusual name garnered significant public attention, with Grimes explaining on social media that "X" represented "the unknown variable," "Æ" her "elven spelling of Ai (love &/or Artificial intelligence)," and "A-12" a reference to their favorite aircraft1. The child is commonly known simply as "X"9.

Most recently, X accompanied his father to the Oval Office, where his playful antics—making monster noises, sticking fingers in his dad's ears, and leaning over the Resolute Desk—caught media attention while Musk discussed his role in the new Department of Government Efficiency3.

Exa Dark Sideræl Musk

In December 2021, Musk and Grimes welcomed their second child, daughter Exa Dark Sideræl Musk, via surrogate19. Affectionately nicknamed "Y" (complementing her brother "X"), her birth was not publicly revealed until March 20229. This came just a month after Musk had welcomed twins with another woman1.

Techno Mechanicus Musk

The existence of Musk and Grimes' third child, son Techno Mechanicus (nicknamed "Tau"), was only revealed in Walter Isaacson's 2023 biography of Musk1. Grimes later confirmed this on X, writing, "I wish I could show u how cute little Techno is but my priority rn is keeping my babies out of the public eye"1.

The relationship between Musk and Grimes has been complex, with Musk confirming they were "semi-separated" in September 202110. By October 2023, Grimes had sued Musk over parental rights and custody of X Æ A-XII10.

Children with Shivon Zilis

Shivon Zilis, the director of operations and special projects at Neuralink (one of Musk's companies), has welcomed four children with the tech entrepreneur in recent years.

Strider and Azure Musk

In November 2021—while Grimes was awaiting the birth of their daughter via surrogate—Musk and Zilis welcomed twins, later named Strider Zilis Musk and Azure Zilis Musk912. The twins' existence wasn't publicly known until July 2022, when court documents revealed their birth12. The children use their mother's surname as a middle name9.

Recent Additions

Musk and Zilis continued to expand their family, welcoming a third child in early 2024 via surrogacy107. Most recently, in March 2025, they welcomed their fourth child together, a son named Seldon Lycurgus3, bringing Musk's total known offspring to 14.

Alleged Child with Ashley St. Clair

The most contentious addition to Musk's family tree involves conservative influencer Ashley St. Clair, who filed a paternity lawsuit against him in February 2025.

Paternity Claims and Legal Dispute

In February 2025, 26-year-old MAGA commentator Ashley St. Clair publicly claimed on X that she had given birth to Musk's child five months earlier (September 2024)2. She subsequently filed a petition in the New York Supreme Court to legally establish Musk as the father of her child and to seek full custody24.

According to court documents, St. Clair alleges she and Musk began a romantic relationship in May 2023 and conceived their child in January 2024 while in St. Barts2. She claims Musk has only visited their child three times, with the last visit occurring in November 20244.

The case has become increasingly contentious, with St. Clair's attorneys claiming in March 2025 that "Elon Musk has financially retaliated against his own child and reduced his financial support substantially and unilaterally" after she filed the lawsuit46. They further allege that Musk sought an emergency gag order to prevent her from discussing him publicly, which a judge denied68.

The paternity case remains unresolved, with St. Clair requesting DNA testing and sole custody6. Musk has not publicly acknowledged this child, though court filings include alleged text messages and photos purporting to show him with the baby24.

Musk's Parenting Philosophy

Elon Musk has occasionally shared insights into his approach to parenting and family planning, offering context for his exceptionally large family.

Pronatalist Views

Musk has identified himself as a "pronatalist," advocating for higher birth rates3. His biographer, Walter Isaacson, confirmed this perspective, stating on TODAY that Musk "believes that people should have many more children" and personally "wants to have a lot of children"3.

Parenting Approach

Despite his many children, Musk has expressed some unconventional views on their education and future. In 2014, he founded Ad Astra, a specialized school for his children that later transitioned to an online institution called Astra Nova1. The school featured no grading system and courses in artificial intelligence, applied science, and coding1.

However, Musk candidly admitted in a 2021 interview that "my kids were mostly educated by YouTube and Reddit... and their classmates"1. Regarding their potential inheritance of his business empire, Musk stated in 2023 that he has no plans to "automatically" give his children shares of his companies "if they have no interest or inclination or ability to manage" his businesses5.

Conclusion

Elon Musk's family continues to expand and evolve, reflecting both his stated pronatalist philosophy and the complex reality of his romantic relationships. With 14 known children across four different women, Musk's family structure represents one of the most unique and publicly discussed celebrity family dynamics of our time. The ongoing legal dispute with Ashley St. Clair suggests that revelations about Musk's family may continue to emerge, adding new chapters to this already remarkable story.

As the world's wealthiest individual navigates multiple businesses, roles in government efficiency, and space exploration ambitions, he simultaneously manages the intricate web of relationships with his children and their mothers—a testament to the multifaceted nature of his controversial and highly public life.

Citations:

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Tuesday, March 25, 2025