Lecture on the painting of the Crucifixion, ‘A Painting, a Miracle, a legend’, listed as a Historic Monument and housed in the Church of Saint Martin in Couches (5 km from Saint-Gervais-sur-Couches), by Bernard Gueugnon, treasurer of the Burgundy Centre for Castle Studies. This painting is the subject of a legend concerning Saint Jeanne de Chantal and the former castle of Toulongeon.