Congo was a chimpanzee who painted. Picasso owned one of his works, as did Miro. “Now, for the first time, three Congos have come on to the open market and will be auctioned alongside works by Renoir, Andy Warhol and the Chapman Brothers at Bonhams in London this month. The pictures, created with tempera on paper, are from the artist’s most productive period in the late 1950s. They are estimated to be worth between £600 and £800 for the three, but such has been the interest already that they may well fetch much more.”