Claude Bernard, whose 1865 book on experimental physiology was popular with Zola and many artists, two scientists who drew the structure of the brain and more.
de Madrazo
His style became very Impressionist. Then, when painting outdoors at Portici, Naples, he contracted malaria and died.
A precocious artist, he went from 2 years study in Rome to Morocco, where he was a war artist. There he became an orientalist.
The founding father of modern neuroanatomy wanted to be an artist, and spent much of his life drawing. He was painted by one of the Madrazo family, among whom was an early Impressionist.