History and Biography Did Einstein marry his cousin? March 11, 2026 by Mercier | Leave a Comment Yes, Albert Einstein did marry his cousin, Mileva Marić. She was the daughter of his mother’s brother. While they were related, they were not first cousins but rather second cousins once removed. Unraveling the Family Tree: Einstein’s Marriages Albert Einstein, a name synonymous with genius, had a personal life that often sparks curiosity. One of […] Read more »