In the second half of the 19th century, Impressionism marked the rupture of modern art with popular academic painting. A pioneer of this pictorial movement, Camille Pissarro stayed in Pontoise between 1866 and 1868 and then settled there permanently from 1872 to 1884. It was in Pontoise that he prepared the first exhibition of the Impressionist group of 1874 and that he realized several hundred of his works. He worked in the Oise valley with Cézanne for ten years between 1872 and 1881 and then with Gauguin between 1879 and 1882.
The Camille-Pissarro Museum, which pays tribute to him, presents, alongside two paintings of the master, works of his sons, Lucien, Ludovic-Rodo, Georges and Félix that he initiated to art but also those of his friends, Paul Signac, Ludovic Piette, Federico Zandomeneghi, Edouard Béliard or Louis Hayet.
The display of the permanent collections is complemented by works by pre-impressionist or post-impressionist painters who have worked in the Oise Valley such as Charles François Daubigny, Emilio Sanchez-Perrier, Norbert Goeneutte, Emilio Boggio, Luis Jimenez, Clovis Cousin, Octave Linet.