"Archangel Michael Slaying the Devil" is one of the most famous artworks of the Church of Santa Maria della Concezione dei Cappuccini and it also has a curious story. The author, Guido Reni, was harshly criticised by Cardinal Giovanni Battista Pamphili before the artist started to work on this painting; hurt and upset, he painted the devil with the features of the cardinal. He could not imagine that that cardinal would have become Pope Innocenzo X some years later.