Jules Le Cœur (September 17, 1832 – April 26, 1882) was a French architect and painter and a friend and early supporter of Pierre-Auguste Renoir (1841–1919). Le Cœur also appeared as a subject in two of Renoir's paintings, Mother Anthony's Tavern and Jules Le Cœur and his dogs in the forest of Fontainebleau, both in 1866.[1] Jules was the son of Joseph Le Cœur, a carpenter, and Catherine Félicie Jaullain.[2] The architect Charles Le Cœur was his brother. Like his brother, Jules was also an architect and a student of Henri Labrouste.[3] He married Marianne Bouwens in 1861, but she died shortly thereafter in 1863. Subsequently, Le Cœur gave up architecture and devoted himself to painting. By 1865, he was spending time at a house in Bourron-Marlotte and painting in the Fontainebleau forest with Renoir. At the same time, Le Cœur began a relationship with Clémence Tréhot while Renoir was involved with her sister Lise Tréhot who also became his model.[4] Le Cœur died at his home on the rue Campagne-Première at the age of 49 in 1882.[5]