rarely exhibited Pablo Picasso masterpiece "Sleeping Girl" was sold in the evening auction Christie's «Impressionist and Modern Art" for the sum of £ 13 481 250. In the picture, written by a master in 1935 year, shows Picasso's mistress Marie-Therese Walter, posed for many famous paintings of the artist. The work went much more expensive than the estimate ranges from £ 9 to £ 12 million. "Sleeping Girl" was donated to the University of Sydney in 2010 an anonymous benefactor for sale at auction to a way to support scientific research. Benefactor preferred to remain incognito. Curiously, the portraits of Picasso's favorite women are the most successful works of the artist. Thus, the painting "Nude, Green Leaves and Bust", which Picasso ingeniously transformed Marie-Therese Walter, in 2010, became the most expensive work of art from the ever sold at auction. The work was purchased by an anonymous collector for $ 106, 5 million.