 The window is attributed to Hirsch and dates to 1869.The scenes include his birth, the pilgrimage to Rome, his attempt to cure victims of the plague in a hospital, his catching that disease himself, a visit from an angel, a dog bringing him nourishment; his being visited by Monseigneur Gothard, his converting Gothard, his being sick in hospital, his recognition by the prison governor his uncle and his funeral.Two frescoes by Yann Dargent complete the chapel's decoration.