This painting by Van Gogh is the most well known representation of Dr Paul Gachet (1828–1909), who died in Auvers-sur-Oise but was buried in Père-Lachaise. It shows the doctor, artist, and art collector holding a foxglove branch.
He specialised in nervous illnesses, his thesis being a study of depression. He pracised in Paris but bought the house in Auvers as a breathing space for his sick wife. His house was visited by a number of artists, and Gachet's children left many paintings – including several by Van Gogh – to museums in Paris.
My Auvers-sur-Oise post:
Van Gogh and others in Auvers-sur-Oise