Cause of death: stroke
Gustave Caillebotte (French: [ɡystav kɑjbɔt]; 19 August 1848 – 21 February 1894) was a French painter who was a member and patron of the Impressionists, although he painted in a more realistic manner than many others in the group. Caillebotte was known for his early interest in photography as an art form.
Source : Wikipedia
