Cause of death: syphilis
Jules Alfred Huot de Goncourt (pronounced [ʒyl də ɡɔ̃kuʁ]; 17 December 1830 – 20 June 1870) was a French writer, who published books together with his brother Edmond. Jules was born and died in Paris. His death at the age of 39 was at Auteuil of a stroke brought on by syphilis.
The Prix Goncourt is awarded annually in his honor.
Source : Wikipedia
