Duchy

Duchy of Poland Duchy of Naples Duchy of Estonia Duchy of Mecklenburg-Schwerin Duchy of Lower Bavaria (second creation) Duchy of Prussia Duchy of Milan Duchy of Lorraine Saxe-Weimar-Eisenach Duchy of Saxe-Altenburg Duchy of Lucca Duchy of Brabant Duchy of Friedland Duchy of Saxony Duchy of Parma grand duchy Duchy of Anhalt Livonia Duchy of Upper Bavaria (first creation) Duchy of Florence County of Apulia Duchy of Gaeta Duchy of Modena and Reggio Duchy of Schleswig Duchy of Benevento Duchy of Luxembourg Duchy of Spoleto Duchy of Brunswick Duchy of Athens Duchy of Genoa Duchy of Austria Duchy of Apulia and Calabria Duchy of Bukovina Duchy of Savoy upper duchy of Lorraine Duchy of Upper Bavaria Duchy of Burgundy Duchy of Aosta Bavaria-Munich Duchy of Silesia Duchy of Styria Duchy of Cleves Saxe-Eisenberg Ernestine duchies Duchy of Amalfi Duchy of Bouillon Duchies of Silesia Duchy of Saxe-Wittenberg Duchy of Ferrara Duchy of Swabia