Gustave Caillebotte 1848-1894
Caillebotte was born in a rich family and he became a mecenas for impressionist painters in Paris. Although his own style was a mix of realism and impressionism, and most realist painters disguised the impressionist movement, he supported the impressionist painters and helped in organizing expositions. His work reflects daily life in Paris in the 19th century with a keen eye for urban scenes.
Some books on this art mecenas and artist in one person :
Gustave Caillebotte: An Impressionist and Photography
Fashion in Impressionist Paris