Auguste Frédéric Louis Viesse de Marmont was a French general and nobleman who rose to the rank of Marshal of the Empire and was awarded the title Duke of Ragusa. In the Peninsular War Marmont succeeded the disgraced André Masséna in the command of the French army in northern Spain, but lost decisively at the Battle of Salamanca as France ultimately lost the war in Spain.

Marshal of the Empire was a civil dignity during the First French Empire. It was created by Sénatus-consulte on 18 May 1804 and to a large extent reinstated the formerly abolished title of Marshal of France. According to the Sénatus-consulte, a Marshal was a grand officer of the Empire, entitled to a high-standing position at the court and to the presidency of an electoral college.