Elon Musk, the billionaire entrepreneur behind Tesla, SpaceX, and Neuralink, is also the father of 14 children, a number that continues to grow as his family expands across relationships with four different women. The births span from 2002 to 2025, and each addition has drawn intense public and media attention. Musk’s journey into fatherhood has been marked by both tragedy and controversy, with some children staying out of the spotlight while others have become public figures in their own right.
Early Family with Justine Wilson
Musk’s first serious relationship was with Canadian author Justine Wilson, whom he married in 2000. Their first child, Nevada Alexander, was born in 2002 but tragically died at just 10 weeks old from sudden infant death syndrome (SIDS). The loss deeply affected the couple, and they turned to in vitro fertilization (IVF) to expand their family. In 2004, Wilson gave birth to twins: a daughter named Vivian and a son named Griffin. Two years later, in 2006, they had triplets: Kai, Saxon, and Damian. This gave Musk a total of six children with Wilson, though the marriage ultimately ended in divorce in 2008.
Vivian Jenna Wilson, one of the twins, made headlines in 2022 when she legally changed her name and gender, stating in court documents that she no longer wished to be related to her biological father in any way. She cited ideological differences and a desire for independence. Griffin, the other twin, has largely stayed out of the public eye, as have the triplets Kai, Saxon, and Damian. They have rarely appeared in media and are known to lead relatively private lives, shielded from the constant scrutiny that follows their father.
Children with Grimes
After his divorce from Wilson, Musk began a relationship with Canadian musician Claire Boucher, known professionally as Grimes. The couple had three children together, though their relationship was on-and-off and never formally married. Their first child, a son, was born in May 2020 and initially named X Æ A-12, a name that sparked widespread confusion and amusement. The spelling was later adjusted to X Æ A-Xii due to California law restrictions on numerals. This child, often referred to simply as X, has been seen accompanying Musk at business meetings and even political events, including a visit to the White House.
In December 2021, Grimes and Musk welcomed a daughter via surrogate named Exa Dark Sideræl, often shortened to Y. The name again reflected unconventional creativity, with Exa referencing the supercomputing term exaflops, Dark referring to dark matter, and Sideræl derived from sidereal. Finally, in June 2022, they had a son named Techno Mechanicus, nicknamed Tau. Grimes has spoken publicly about raising their children with a focus on science and technology. She mentioned that X knows a lot about rockets, saying, "It's crazy." The children have occasionally appeared on social media, but Grimes has also expressed concerns about privacy and the challenges of co-parenting with one of the world’s most famous entrepreneurs.
The Growing Family with Shivon Zilis
In parallel with his relationship with Grimes, Musk also fathered children with Shivon Zilis, a high-ranking executive at Neuralink, one of Musk’s companies. Zilis, who holds degrees from Yale and has worked in venture capital, became a central figure in Musk’s family expansion. In November 2021, she gave birth to twins named Strider and Azure. The existence of these twins was revealed through court documents related to a name-change petition, which brought public attention to this new branch of the family.
In February 2024, Zilis had a daughter named Arcadia. Then, in February 2025, she announced the birth of a son named Seldon Lycurgus. Announcing the birth on X (formerly Twitter), Zilis called him "our wonderful and incredible son Seldon Lycurgus." With these four children, Zilis has become the mother of the most recent significant expansion of Musk’s family. The births have fueled ongoing speculation about Musk’s personal life and his commitment to fathering many children, a topic he has publicly addressed by expressing concern about population decline and stating that he considers it his duty to have many children to help offset the trend.
Ashley St. Clair and Romulus
The most recent addition to Musk’s family came in February 2025, when conservative author Ashley St. Clair publicly revealed that she and Musk had welcomed a child together in September 2024. The baby boy was named Romulus, a name with mythological connotations of the founding of Rome. St. Clair’s spokesperson confirmed both the child’s name and that paternity tests had been completed. This made Romulus the 14th child publicly identified in Musk’s family timeline.
The revelation added another layer to an already complex family narrative. St. Clair is known for her writing on cultural and political topics, and her decision to go public sparked a flurry of media coverage. Musk did not immediately comment publicly, but the paternity confirmation was enough to establish the child’s legal status. The news also raised questions about how Musk manages such a large and scattered family, given his responsibilities leading multiple companies and his active presence on social media.
Broader Context and Controversies
Musk’s large family has not been without controversy. Aside from Vivian’s public rejection, there have been legal disputes over child support, custody arrangements, and the distribution of wealth. Musk is one of the richest people in the world, with a net worth fluctuating in the hundreds of billions. The financial implications of supporting so many children are enormous, but Musk has indicated that he intends to provide for them generously. However, some mothers have reported difficulties in communication and coordination.
The family dynamics are further complicated by the fact that Musk’s relationships with the mothers have often been short-lived or strained. He has had public spats with Grimes on social media, and the circumstances of his relationship with St. Clair remain unclear. Despite this, Musk continues to have children, often expressing a belief that intelligent people should reproduce more. His stance on pronatalism has drawn both support and criticism. Some see it as a responsible personal choice given his wealth and influence; others view it as reckless and undermining of the women involved.
From a broader perspective, Musk’s family story reflects the intersection of celebrity, business, and personal life in the 21st century. His children represent a diverse group, ranging from infants to young adults. Some may choose to follow in his footsteps in technology or entrepreneurship, while others may pursue completely different paths. Already, X Æ A-Xii has appeared with Musk at high-profile events, hinting at a possible public future. The rest remain largely out of view, for now.
As of early 2025, the Musk family tree has 14 branches, with the oldest child being 23 years old (Griffin) and the youngest just a few months old (Romulus). The mothers are spread across different cities and lifestyles, from Los Angeles to Austin. How Musk balances his time and attention among them is a subject of endless speculation. What is certain is that the family will continue to be a topic of public fascination, particularly with Musk’s penchant for making headlines.
While the original article from Promipool provided a concise summary, a deeper dive reveals the nuances: the loss of Nevada Alexander, the estrangement from Vivian, the unconventional names chosen with Grimes, the quiet but significant presence of Zilis, and the surprise entrance of St. Clair. Each child adds a new chapter to a story that is far from over. As technology, business, and personal life become ever more intertwined, Elon Musk’s family offers a window into the challenges and privileges of extreme wealth and influence.
Source:MSN News