Jean-Laurent-Frederick Longuet was a French socialist politician and journalist. He was Karl Marx's grandson. Wikipedia
Born: May 10, 1876, London, United Kingdom
Died: September 11, 1938 (age 62 years), Aix-les-Bains, France
Children: Robert-Jean Longuet and Karl-Jean Longuet
Grandchildren: Anne Longuet Marx and Frédérique Longuet-Marx
Great-grandparents: Heinrich Marx, Henriette Pressburg, Ludwig von Westphalen, and more
Grandparents: Karl Marx and Jenny von Westphalen
Parents: Jenny Marx Longuet and Charles Longuet