Claim: Albert Einstein married his cousin Elsa Einstein. Rating: About this rating TrueFor years, people online have shared an alleged fact: Albert Einstein married one of his cousins. Three years later, in 1879, Hermann Einstein and his wife, born Pauline Koch, welcomed baby Albert Einstein, also in Germany. Records also show Elsa Einstein's paternal grandfather, Raphael Einstein, and Albert Einstein's paternal grandfather, Abraham Einstein, were brothers, making Albert and Elsa Einstein paternal second cousins. A German-language marriage record appeared to confirm Albert Einstein wedded Elsa Einstein in Berlin in June 1919.