Lucian Freud was a German-born British painter known mostly for bold and realistic portraits and nudes. His 1995 painting of a nude, obese woman, Benefits Supervisor Sleeping, sold in 2008 for $33.6 million, a record high price for the work of a living artist. The grandson of Sigmund Freud, his background was primarily in drawing, and he was a tutor at the Slade School of Fine Art in London in the late 1940s and '50s. Freud began getting recognition in the early 1950s, making his mark as a new kind of realist, with muted colors and heavy brushstrokes that emphasized the flesh. Freud was known to spend thousands of hours on a single portrait; he often painted people he knew who were willing to endure months of sitting under the gaze of a probing eye. A retrospective exhibit in 1987 and 1988 in Paris, Washington and London helped make Freud an international star. By the end of his career, Lucian Freud was among a handful of painters described as the world's best, and the value of his painting began to soar. The National Gallery of Australia bought Freud's After Cézanne (2000) for $7.4 million in 2001, and in 2011, a few months after Freud's death, his Boy's Head sold for nearly $5 million.