PARIS, Sept 15, 2023 (AFP) – An unprecedented collection of paintings by 20th century abstract master Nicolas de Stael have been gathered for a show that opened in Paris on Friday — including several even his own children have never seen. The exhibition at the Museum of Modern Art includes some 200 paintings by de Stael, a key figure in France’s postwar art scene. They include several that have never shown in public because the […]