During the 1860s and early 1870s, Durand-Ruel was an important advocate and successful art dealer of the Barbizon School but he is best known for his relationship with a group of painters who would become known as the Impressionists.
Durand-Ruel played a crucial role in connecting artists of the Barbizon School to the wider art market during the 1860s and early 1870s, paving the way for their recognition and influence. He is particularly known for his association with Impressionist painters who were developing their style at that time.