Duchy Duchy of Cornwall Duchy of Lancaster Duchy of Parma and Piacenza Duchy of Luxembourg Duchy of Guelders Duchy of Lorraine Duchy of Saxony Duchy of Warsaw Duchy of Athens Duchy of Jawor Duchy of Silesia Duchy of Münsterberg Duchy of Mantua Duchy of Teschen Chancellor of the Duchy of Lancaster Grand Duchy of Posen Grand duchy Duchy of Limburg Duchy of Modena and Reggio Duchy of Burgundy Duchies of Silesia Duchy of Głogów Duchy of Lucca Waitrose Duchy Organic Duchy of Bernstadt Duchy of Nassau Duchy of Masovia Duchy of Krnov Duchy of Westphalia Duchy of Savoy Duchy of Montferrat Duchy of Jülich Duchy of Brunswick Duchy of Livonia Duch…
hy of Warsaw (Middle Ages) Duchy of Carinthia Stem duchy Duchy of Spoleto Duchy of Lithuania Duchy of Pomerania-Stolp Duchy of Oels Duchy of Brabant United Baltic Duchy Duchy of Troppau Grand Duchy of Lithuania Duchy of Racibórz Duchies in England Duchy of Löwenberg Duchy of Styria Duchy of Pomerania Duchy of Reggio Grand Duchy of Würzburg Duchy of Cleves Duchy of Massa and Carrara Duchy of Courland and Semigallia Grand Duchy of Finland Duchy of Nivernais Duchy of Neopatras Duchy of Syrmia Duchy of Siewierz Duchy of Oświęcim Duchy of Kldekari Duchy of Żagań Duchy of the Archipelago Duchy of Benevento Duchy of O
pole and Racibórz Duchy of Tskhumi Duchy of Croatia Duchy of Gascony Grand Duchy of Hesse Duchy of Saint Sava Grand Duchy of Kraków Duchy of Akhalkalaki Duchy of Łęczyca Duchy of Belz Duchy of Naples Duchy of Limburg (1839–1867) Duchy of Głubczyce Duchy of Friuli Duchy of Brzeg Duchy of the Pentapolis Grand Duchy of Mecklenburg-Strelitz Grand Duchy of Baden Duchy of Orléans Duchy of Opole Duchy of Tridentum Duchy of Milan Partitions of the Duchy of Pomerania Duchy of Carniola Ernestine duchies Duchy of Kraków Duchy of Friedland Duchy of Genoa Duchy of Bar Duchy of Bytom Duchy of Sorrento Duchy of Brittany Grand Duchy of Oldenburg Grand Duchy of Tuscany Duchy of Sora Duchy of Austria Duchy of Inowrocław Duchy of Legnica Duchy of Kr
Duchy of Cornwall
Duchy of Lancaster
Duchy of Parma and Piacenza
Duchy of Luxembourg
Duchy of Guelders
Duchy of Lorraine
Duchy of Saxony
Duchy of Warsaw
Duchy of Athens
Duchy of Jawor
Duchy of Silesia
Duchy of Münsterberg
Duchy of Mantua
Duchy of Teschen
Chancellor of the Duchy of Lancaster
Grand Duchy of Posen
Grand duchy
Duchy of Limburg
Duchy of Modena and Reggio
Duchy of Burgundy
Duchies of Silesia
Duchy of Głogów
Duchy of Lucca
Waitrose Duchy Organic
Duchy of Bernstadt
Duchy of Nassau
Duchy of Masovia
Duchy of Krnov
Duchy of Westphalia
Duchy of Savoy
Duchy of Montferrat
Duchy of Jülich
Duchy of Brunswick
Duchy of Livonia
Duchy of Warsaw (Middle Ages)
Duchy of Carinthia
Stem duchy
Duchy of Spoleto
Duchy of Lithuania