As for Lassalle, he became the victim of Marx's most brutal anti-Semitic and racial sneers: he was 'Baron Itzig', 'the Jewish Nigger', 'a greasy Jew disguised under brilliantine and cheap jewels'. 'It is now perfectly clear to me,' Marx wrote to Engels on 30 July 1862, 'that, as the shape of his head and the growth of his hair indicates, he is descended from the Negroes who joined in Moses' flight from Egypt (unless his mother or grandmother on the father's side was crossed with a nigger). This union of Jew and German on a Negro base was bound to produce an extraordinary hybrid.'
He called Paul Lafargue, Laura's husband, who came from Cuba and had some Negro blood, 'Negrillo' or 'The Gorilla'.