How Many Kids Does Grimes Have?
Grimes Quietly Welcomed a Third Child With Elon Musk: What to Know
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According to Isaacson's Musk biography, the pair's third child, Techno Mechanicus, goes by Tau, per The New York Times. Many online believe the baby's name is a reference to Warhammer 40,000, a miniature war game. Mechanicus is a faction in the game.