Former Dutch Queen, now Princess Beatrix, opens an exhibition of pop art icon's Andy Warhol collection of "Reigning Queens" produced in 1985, shortly before Warhol's death in 1987. Part of the collection is a set of four silk prints of Beatrix. "Now you have this complete set, and they do something with each other. So I think that's very nice," says the museum curator Hanna Klarenbeen.AFP VIDEO