Jean Etienne Liotard
Portrait of a Young Woman, late 19th century, pastel, 40.6 × 32.4 cm, Saint Louis Art Museum, Missouri.
Liotard was a Swiss-French painter. He was an artist of great versatility, and though his fame depends largely on his graceful and delicate pastel drawings, he achieved distinction also by his enamels, copperplate engravings and glass painting. He also wrote a Treatise on the Art of Painting, and was an expert collector of paintings by the old masters.