The Shchukin Gallery, which sells Russian art in Paris and New York, is suing a Russian oligarch for damages and attorney fees of $950 million — in what might or might not be the culmination of an unusually tangled legal battle over three paintings by Kazimir Malevich and two by Natalia Goncharova that were, as Shchukin’s attorney puts it, “hijacked” and are now in an “art hostage situation.” – The Art Newspaper