The Collection of Peggy and David Rockefeller review – yours for half a billion

Christie’s, King Street, LondonPicasso’s bolshy flower girl is just one of the rare gems to be glimpsed in London before this vast private collection goes under the hammerGertrude Stein was angry when Leo, her brother, bought Picasso’s Fillette à la corbeille fleurie (Young Girl With a Flower Basket) in 1905. The Steins were shown the painting by Clovis Sagot, the former circus clown who had become Picasso’s dealer in Montmartre. The painting is of a pubescent girl