Pierre-Auguste Renoir (1841-1919) was one of the developers of Impressionism. Evolving over the 1860s, as a style of art it emerged from a clique of artists who were free-hearted souls. In a meadow awash with poppies, or near a rushing river, they were aesthetes pursuing a form of liberty. Their freedom in a physical sense lay in the glowing outdoors. It was where they chose to paint, in the sun and rain, dabbing away at canvases.