Some of the most expensive paintings

Paul Cezanne - The Card Players £158m - Before the Gauguin sale, this was believed to be the most money paid for a painting. Also purchased by Qataris, it fetched a reported £158m in 2011.
Francis Bacon - Three Studies of Lucian Freud £89m- The triptych is considered one of Bacon's greatest masterpieces. It sold after six minutes of fierce bidding in November 2013, according to auction house Christie's.
Edvard Munch - The Scream £74m - Perhaps one of the world's most famous images, The Scream went on sale in May 2012, sparking a 12-minute bidding war. By the end, the privately-owned pastel, one of four in a series by the Norwegian, had been sold for £74m.
Gustav Klimt - Portrait of Adele Bloch-Bauer £73m - According to The New York Times, the Neue Galerie paid £73m for the oil painting in a private sale in 2006. It had been looted by the Nazis during World War Two, before being returned to Ms Bloch-Bauer's heir in 2006.
Jackson Pollock - No. 5 £73m - Pollock's famous drip-and-pour painting was sold for a then record £73m, also in 2006, according to The New York Times. Reports said US media magnate David Geffen sold the 4ft by 8ft work to Mexican financier David Martinez.
Pablo Picasso - Nude, Green Leaves, and Bust £65.5m - Considered amongst Picasso's greatest post-war paintings, it sold at auction in New York in 2010 for £65.5m.