London's National Gallery buys mysterious altarpiece for $20m

London's National Gallery has acquired a mysterious altarpiece, "Virgin and Child with Saints Louis and Margaret and Two Angels" (1500-10), for just over $20 million in a private sale arranged through Sotheby's. The painting, funded by the American Friends of the National Gallery London, was sold by a descendant of the Blundell family and had been kept on the Lulworth Estate in Dorset. The artist remains unknown, with proposed names including Jan Gossaert, Jean Hey, and the Master of Saint Giles, and no other works by the same hand are known. The altarpiece was last publicly exhibited in 1960 and has only recently been shown privately to specialists, who remain divided on its attribution.