Eleanor Marx Aveling

Eleanor Marx Aveling (16 January 1855 – 31 March 1898), also known as Jenny Julia Eleanor “Tussy” Marx, was the English-born youngest daughter of Karl Marx and his wife Jenny von Westphalen. She was herself a socialist activist, who sometimes worked as a literary translator. She translated various literary works, including the first English translation of Gustave Flaubert’s Madame Bovary.
In March 1898, after discovering that her partner and prominent(very well ​known and ​important) British Marxist(a ​supporter of ​Marxism), Edward Aveling, had secretly married a young actress in June the previous year, she committed(to do something ​illegal or something that is ​considered ​wrong) suicide(the ​act of ​killing yourself ​intentionally) by poison. She was 43.