Dutch tailor and prostitute
Sien
Vincent van Gogh drew and painted a series of works of his mistress Sien during their time together in the Netherlands.
In particular, his drawing Sorrow is widely acknowledged as a masterwork of draftsmanship, the culmination of a long and sometimes uncertain apprenticeship in learning his craft.
Text adapted from Wikipedia, CC BY-SA 4.0. Photograph: GoldenArtists (see Commons), Wikimedia Commons.