Francis IV Joseph Charles Ambrose Stanislaus (Italian: Francesco IV Giuseppe Carlo Ambrogio Stanislao d'Asburgo-Este; October 6, 1779 – January 21, 1846) is Duke of Modena, Reggio, and Mirandola (from 1815), Duke of Massa and Prince of Carrara (from 1829), Archduke of Austria-Este, Royal Prince of Hungary and Bohemia, Knight of the Order of the Golden Fleece.