Give that year that Van Gogh wrote to his brother about the Portrait of Dr. Gachet .
While Van Gogh was in Saint - Rémy , his brother , Theo and artist Camille Pissarro developed a plan for Van Gogh to go to Auvers - sur - Oise with a letter of introduction for Dr. Paul Gachet a homeopathic physician and art patron who lived in Auvers .