Elon Musk and Shivon Zilis have welcomed their fourth child, a baby boy named Seldon Lycurgus. Zilis confirmed the birth in a social media post while celebrating their twins, Strider and Azure, on their second birthday.

Tesla and SpaceX founder Elon Musk has reportedly welcomed his 14th child, a son named Seldon Lycurgus, with Shivon Zilis, an executive at Neuralink. Zilis confirmed the news in a post on X (formerly Twitter),

Seldon Lycurgus is Elon Musk's 14th child, and fourth with Neuralink director Shivon Zilis. Elon Musk listens as President Donald Trump meets with India's Prime Minister Narendra Modi in the Oval Office of the White House, Feb. 13, 2025.