Cause of death: liver disease
Jean Frédéric Joliot-Curie (French: [fʁedeʁik ʒɔljo kyʁi]; né Joliot; 19 March 1900 – 14 August 1958) was a French physicist and husband of Irène Joliot-Curie, with whom he was jointly awarded the Nobel Prize in Chemistry in 1935 for their discovery of induced radioactivity. They were the second ever married couple, after his wife's parents, to win the Nobel Prize, adding to the Curie family legacy of five Nobel Prizes. Joliot-Curie and his wife also founded the Orsay Faculty of Sciences, part of the Paris-Saclay University.
Source : Wikipedia
