The 14 'Musk-eteers': A Deep Dive Into Elon Musk's Complete, Updated Family Tree And Controversial Names
The family of the world's most prolific entrepreneur, Elon Musk, continues to grow and evolve, captivating global attention with its unique dynamics and unconventional naming conventions. As of the latest updates in late 2024 and early 2025, the Tesla and SpaceX CEO is confirmed to be the father of 14 children with four different women, a topic that has fueled widespread curiosity and discussion about his personal life and his public mission to combat population decline. This in-depth look provides the most current information, including the names of the newest additions to the ever-expanding 'Musk-eteer' tribe.
The sheer size and complexity of the billionaire's family—spanning decades, multiple continents, and involving mothers who are authors, musicians, and top executives at his own companies like Neuralink—makes it a fascinating subject. The recent births, including a fourth child with Neuralink executive Shivon Zilis and a son with conservative author Ashley St. Clair, have cemented the family's place in the headlines, shifting the focus from his professional ventures to his personal commitment to fatherhood.
The Complete Biography of Elon Musk's 14 Children and Their Mothers
Elon Musk has fathered 14 children with four women: his first wife, Canadian author Justine Wilson; musician Grimes (Claire Boucher); Neuralink executive Shivon Zilis; and conservative author Ashley St. Clair. The family is notable for its chronological span, from the early 2000s to the most recent births in 2024 and 2025.
- Nevada Alexander Musk (with Justine Wilson)
- Born: 2002
- Status: Tragically passed away at 10 weeks old from Sudden Infant Death Syndrome (SIDS).
- Twins: Griffin Musk and Vivian Jenna Wilson (formerly Xavier) (with Justine Wilson)
- Born: 2004 (Currently 21 years old as of 2025)
- Note: Vivian legally changed her name and gender identity in 2022, opting to drop the Musk surname and take her mother's.
- Triplets: Kai Musk, Saxon Musk, and Damian Musk (with Justine Wilson)
- Born: 2006 (Currently 19 years old as of 2025)
- Note: Conceived via in vitro fertilization (IVF).
- X Æ A-Xii Musk ('X') (with Grimes)
- Born: May 4, 2020 (Currently 5 years old as of 2025)
- Note: His name was legally changed to X Æ A-Xii, pronounced 'X Ash A Twelve', after California law disallowed the original name X Æ A-12.
- Exa Dark Sideræl Musk ('Y') (with Grimes)
- Born: December 2021 (Currently 3 years old as of 2025)
- Note: Born via surrogate. Her nickname is 'Y'.
- Techno Mechanicus ('Talo') (with Grimes)
- Born: 2022 (Currently 3 years old as of 2025)
- Note: His name was revealed in Walter Isaacson's biography of Elon Musk.
- Twins: Strider Zilis Musk and Azure Zilis Musk (with Shivon Zilis)
- Born: November 2021 (Currently 3 years old as of 2025)
- Note: The twins were conceived via IVF. Zilis is a director at Neuralink.
- Arcadia Zilis Musk (with Shivon Zilis)
- Born: Early 2024 (Currently 1 year old as of 2025)
- Note: The birth of the third child with Zilis was confirmed in June 2024.
- Seldon Lycurgus Zilis Musk (with Shivon Zilis)
- Born: Late 2024/Early 2025 (Currently an infant as of 2025)
- Note: Zilis announced the birth of their fourth child, a son, in February 2025. The name Seldon is speculated to be a reference to Hari Seldon from Isaac Asimov's Foundation series.
- Romulus St. Clair Musk (with Ashley St. Clair)
- Born: Late 2024 (Currently an infant as of 2025)
- Note: Conservative influencer Ashley St. Clair announced the birth of her son with Musk in February 2025.
The Growing Family and Musk's Mission to Address Population Collapse
The sheer number of children, 14, is a direct reflection of Elon Musk's publicly stated concern about what he calls "underpopulation" and the declining birth rate in developed nations. He has repeatedly warned that a "population collapse" is a far greater threat to civilization than climate change, viewing his large family as a personal contribution to solving this global issue.
This philosophy has led to a unique and complex co-parenting dynamic among the four mothers. The mothers of his children—Justine Wilson, Grimes, Shivon Zilis, and Ashley St. Clair—each have their own distinct relationships with the billionaire, often navigating their roles in the public eye. The focus on his mission to "seed the planet" has been a consistent theme in reports about his family life, positioning his fatherhood not just as a personal choice but as a socio-political statement.
The birth of the newest children, Seldon Lycurgus and Romulus, in late 2024 and early 2025, underscores the ongoing nature of this mission. The names themselves, particularly Seldon, which is a clear nod to the visionary science fiction of Isaac Asimov, reflect Musk's deep interest in futurism and the long-term trajectory of humanity. This fascination with science fiction and future technology is a recurring theme in his children's names.
The Controversy and Meaning Behind the Unconventional Names
Perhaps the most talked-about aspect of the Musk family, particularly the children he shares with Grimes, is the series of highly unconventional names. These names are not merely eccentric; they are often deeply rooted in technology, mathematics, and esoteric concepts, reflecting the personalities of both parents.
The name X Æ A-Xii, nicknamed 'X', is a prime example. The parents explained the components: 'X' stands for the unknown variable; 'Æ' is the Elven spelling of AI (Artificial Intelligence) or 'love'; and 'A-12' was a precursor to the SR-71 Blackbird, which the couple described as their favorite aircraft—a machine that is 'great, but non-violent.' The final legal version, X Æ A-Xii, had to replace the number 12 with the Roman numeral Xii to comply with California state law, which only allows letters from the English alphabet.
His daughter, Exa Dark Sideræl, nicknamed 'Y', is equally complex. 'Exa' is a reference to the supercomputing term exaFLOPS, which is a measure of processing speed. 'Dark' is defined by Grimes as "the unknown," while 'Sideræl' is an Elven spelling of 'sidereal,' meaning relating to or determined by the stars. The name is a direct nod to the cosmos and the mysteries of space, aligning perfectly with Musk's SpaceX venture.
The third child with Grimes, Techno Mechanicus, or 'Talo', continues this trend. While less is known about the specific meaning, the name clearly evokes themes of technology, engineering, and robotics, entities that are central to the work of both the father and the mother, a renowned electronic musician.
Co-Parenting Dynamics and the Future of the Musk Family
Managing a family of 14 children with four mothers presents unique challenges, which Elon Musk himself has acknowledged, stating that it can be "impossible" to spend time with all of his kids. The co-parenting arrangements are reportedly cordial but complex.
Justine Wilson, his first wife, has been open about their co-parenting of their five surviving children, focusing on maintaining a stable environment for the older generation of Musk children: Griffin, Vivian, Kai, Saxon, and Damian. Grimes has also discussed the challenges of raising their three children, 'X', 'Y', and 'Talo', in the public eye, often focusing on their education and unique upbringing.
The dynamic with Shivon Zilis, a high-ranking executive at Neuralink, is particularly notable, as their four children—Strider, Azure, Arcadia, and Seldon Lycurgus—were born in close succession to his children with Grimes. Zilis and Musk have reportedly focused on ensuring the children are raised in a supportive, shared environment despite their parents not being in a traditional relationship. This arrangement highlights a modern, non-traditional approach to family building among high-profile figures.
The addition of Romulus with Ashley St. Clair, a conservative commentator, further diversifies the family structure. The family's future is undoubtedly tied to Musk's continued public life and his commitment to his 'population seeding' mission. As the older children, like Vivian Jenna Wilson, begin to forge their own public identities, the Musk family tree will remain a subject of intense global scrutiny and fascination for years to come.
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