And the numbers keep adding up — Elon Musk is now a father of 14.

Shivon Zilis, director of Neuralink, made an announcement on X on February 28 that she and Musk have welcomed their fourth child together: Seldon Lycurgus.

“Discussed with Elon and, in light of beautiful Arcadia’s birthday, we felt it was better to also just share directly about our wonderful and incredible son Seldon Lycurgus. Built like a juggernaut, with a solid heart of gold. Love him so much ♥️,” she wrote.

In reply, Musk only commented a red heart.

Zilis and the Tesla Motors CEO revealed in November 2021 that the pair had secretly welcomed twins, son Strider and daughter Azure. They were born only weeks in advance to Musk and musician Grimes having a baby girl, Exa Dark Sideræl, via surrogate, according to court documents published on Insider in July 2021.

And just a year prior to baby Seldon’s birth, they welcomed their third child together, Arcadia, where Zilis celebrated by posting on Instagram, “Happy 1st birthday, darling Arcadia. Mommy loves you with all her heart 💞.

“We are waiting for Elon to publicly acknowledge his parental role with Ashley, to end unwarranted speculation,” he said, as the Tesla founder has only offered his response with one word replies.