Duchy Duchies of Silesia Duchies in England Ernestine duchies Stem duchy Grand duchy Duchy of Cornwall Duchy of Silesia Duchy of Lancaster United Duchies of Jülich-Cleves-Berg List of Pomeranian duchies and dukes Duchy of Głogów Duchy of Jawor Duchy of Bernstadt Duchy of Krnov Duchy of Parma and Piacenza Duchy of Oświęcim Duchy of Jülich Duchy of Saxony Duchy of Troppau Duchy of Teschen Duchy of Masovia Duchy of Głubczyce Duchy of Racibórz Duchy of Brzeg Duchy of Opole Duchy of Warsaw (Middle Ages) Duchy of Lorraine Duchy of Luxembourg Duchy of Guelders Duchy of Opole and Racibórz Duchy …

of Löwenberg Duchy of Łęczyca Duchy of Carinthia Duchy of Münsterberg Duchy of Sorrento Duchy of Benevento Duchy of Styria Duchy of Lucca Duchy of Nivernais Duchy of Bar Duchy of Oels Duchy of Limburg Duchy of Legnica Duchy of Cleves Duchy of Tridentum Duchy of Bytom Grand Duchy of Kraków Duchy of Tskhumi Duchy of Anhalt Duchy of Berg Duchy of Kraków Duchy of Franconia Duchy of Braganza Duchy of Nysa Duchy of Naples Duchy of Warsaw Duchy of Athens Duchy of Savoy Duchy of Mantua Duchy of the Pentapolis Partitions

of the Duchy of Pomerania Duchy of Żagań Duchy of Neopatras Duchy of Brabant Grand Duchy of Posen Duchy of Schleswig Duchy of Modena and Reggio Duke (Lombard) Duchies of Lancaster and Cornwall (Accounts) Act 1838 Duchy of Burgundy Duchy of Courland and Semigallia Chancellor of the Duchy of Lancaster Duchy of Montferrat Duchy of Bielsko Duchy of Westphalia Duchy of Pomerania Waitrose Duchy Organic Duchy of Spoleto Duchy of Rome Duchy of Nassau Duchy of Brunswick Duchy of Carniola Duchy of Kuyavia Duchy of Livonia Duchy of Pomerania-Stolp Duchy of Czersk Grand Duchy of Mecklenburg-Schwerin Duchy of Eastern Pomerania