Who is Henriëtte Ronner-Knip?

Cats and Books by Henriette Ronner-Knip
Kittens Playing, the image on the right, is by Dutch-Belgian artist Henriëtte Ronner-Knip (31 May 1821 – 28 February 1909).
 
Characterized as a Romantic painter, she is best known for her animal paintings; especially cats.
  

Here is a short slideshow of a few other paintings:
https://en.wikipedia.org/wiki/Henriëtte_Ronner-Knip#/media/File:Henriëtte_Ronner-Knip_-_Katjesspel.jpg