Manet’s 1862 painting The Old Musician is a great human riddle. Just what everybody is doing here, and why they’re gathered together, is a mystery. Yet it’s a puzzle more emotional than academic. Held in the National Gallery in Washington, D.C., you can read their page about it here, or the Wiki page.
The French painter and model Victorine Meurent (1844-1927) appears in some of the most famous of Édouard Manet’s paintings. Click on each to enlarge: