Archangel Michael Slaying the Devil Relief Plaque. This beautifully stunning hand painted Christian relief depicts Archangel Michael is seen here slaying the devil. Church of Santa Maria Della Concezione, Rome. 1626 A.D. The Holy Archangel Michael is one of the most celebrated of the Angels and bodiless powers; he is called the Archistrategos, or chief commander, of all the bodiless powers. This item is made of bonded stone and measures 14"H.