Perhaps a French painter - "naivistka" Serafin Louis, known as Serafin of Senlis. I found her, Wilhelm Uhde, the first buyer of Picasso, Braque. She worked as his maid, he also organized the first exhibition. As for happy end - do not know ... She died in a psychiatric hospital ... Yes, I too had all summer obsession - to find the answer to this riddle ...
