“On Tuesday, one of Guggenheim’s grandsons will launch a court appeal to have the Italian collection restored to its original state, claiming it has been ‘diluted’ by art from other sources. Sandro Rumney, who was born in Venice but lives in France, his half brother Nicolas Hélion and their five children, also want ‘protection’ in the palace garden around a plaque marking Peggy’s ashes – a ‘grave’ they believe has been desecrated.”