Okay. So there's a French word, which is also used in German to describe an artist's workshop. I can't think of it. It's not atelia, or Atelier, depending on your lingo, but there's one that refers specifically to a well decked-out studio/gallery, originally situated in Paris, I guess.
Anyway, the name is definitely an eponym of a French artist - which means it is probably glaringly obvious to our art lovers here. So what is it?

p.s. Why do artists always have to inhabit the top floors of buildings, and then make fancy names for what is essentially a loft?