Titled "Mars the Peacemaker", who is depicted in Antonio Canova's early 19th century nude sculpture?

Napoleon as Mars the Peacemaker is a colossal heroic nude statue by the Italian artist Antonio Canova, of Napoleon I of France in the guise of the Roman god Mars. He holds a gilded Nike or Victory standing on an orb in his right hand and a staff in his left. It was produced between 1802 and 1806 and stands 3.45 metres to the raised left hand. Once on display in the Louvre in Paris, it was purchased from Louis XVIII in 1816 by the British government, which granted it to the Duke of Wellington. It is now on display in Robert Adam's stairwell at the Duke's London residence, Apsley House.