It is one of the masterpieces of the Nancy Museum of Fine Arts. First attributed to Michelangelo and then to the Italian painter Guido Reni, "The Annunciation" remained a painting shrouded in mystery. But in 1948, its true attribution was discovered with astonishment. The artist was none other than the great genius of Italian Renaissance painting: Michelangelo Merisi, known as Caravaggio. Since then, art historians have been investigating the incredible story of "The Annunciation".