He painted cats!

"Théophile Alexandre Steinlen was a French-Swiss artist best known for his Art Nouveau poster designs and paintings. Steilen often depicted animals, specifically cats, as well as the bohemian cabaret culture of turn-of-the-century Paris. Cats appealed to Steinlen for their charm, movement, and character, as well as for their symbolic properties." http://www.artnet.com/artists/th%C3%A9ophile-alexandre-steinlen/

http://www.thegreatcat.org/the-cat-in-art-and-photos-2/cats-in-art-20th-century/theophile-alexandre-steinlen-1859-1923-swiss/