Duchy of Cornwall Lands Act 1862

Duchy of Cornwall

Duchy of Lancaster

Duchy of Saxony

Duchy of Parma and Piacenza

Duchy of Luxembourg

Duchy of Guelders

Duchy of Lorraine

Duchy of Mantua

Duchy of Warsaw

Duchy of Athens

Duchy of Silesia

Chancellor of the Duchy of Lancaster

Grand Duchy of Posen

Duchy of Limburg

Duchy of Münsterberg

Duchy of Modena and Reggio

Duchy of Teschen

Waitrose Duchy Organic

Duchy of Bernstadt

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Duchy of Głogów

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Duchy of Montferrat

Duchy of Jülich

Duchy of Spoleto

Duchy of Livonia

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Duchy of Westphalia

Duchy of Pomerania-Stolp

United Baltic Duchy

Duchy of Lithuania

Duchy of Carinthia

Duchy of Warsaw (Middle Ages)

Duchy of Brabant

Duchy of Styria

Duchy of Troppau

Duchy of Benevento

Grand Duchy of Lithuania

Duchy of Courland and Semigallia

Duchy of Löwenberg

Grand Duchy of Finland

Duchies in England

Duchy of Racibórz

Duchy of Pomerania

Duchy of the Archipelago

Duchy of Siewierz

Duchy of Cleves

Duchy of Oświęcim

Duchy of Nivernais

Duchy of Neopatras

Duchy of Reggio

Duchy of Opole and Racibórz

Duchy of Gascony

Duchy of Naples

Duchy of Łęczyca

Duchy of Massa and Carrara

Grand Duchy of Hesse

Grand Duchy of Würzburg

Duchy of Akhalkalaki

Duchy of Głubczyce

Duchy of Tskhumi

Duchy of Saint Sava

Duchy of Syrmia

Duchy of Żagań

Grand Duchy of Mecklenburg-Strelitz

Duchy of Kldekari

Grand Duchy of Baden

Duchy of Limburg (1839–1867)

Grand Duchy of Kraków

Duchy of Friuli

Ernestine duchies

Duchy of the Pentapolis

Duchy of Pomerelia

Partitions of the Duchy of Pomerania

Duchy of Amalfi

Duchy of Friedland

Duchy of Sorrento

Duchy of Tridentum

Duchy of Orléans

Duchy of Brittany

Duchy of Carniola

Grand Duchy of Oldenburg

Duchy of Kraków

Duchy of Inowrocław

Grand Duchy of Tuscany

Duchy of Anhalt

Duchy of Austria

Duchy of Legnica

Duchy of Krumlov

Subdivisions of the Duchy of Warsaw

Duchy of Franconia

Duchy of Croatia

Constitution of the Duchy of Warsaw

Duchy of Oldenburg

Duchy of Tuscany

Duchy of Normandy

Duchy of Estonia

Army of the Duchy of Warsaw

Duchy of Schleswig

Duchy of Samogitia

Duchy of Durazzo

Grand Duchy of Frankfurt

Duchy Home Farm

Flag of the Duchy of Teschen

Duchy of Pannonia

Grand Duchy of Mecklenburg-Schwerin

Duchy of Württemberg

Duchy of Braganza

Duchy of Nassau–United States relations

Duchy of Poznan

Duchy of Parma–United States relations

List of Pomeranian duchies and dukes

Duchy of Urbino

Grand Duchy of Hesse–United States relations

Attorney-General of the Duchy of Lancaster

Duchy of Prussia

Duchy of Alsace

Duchy of Aquitaine

Duchy of Persiceta

Duchy of Brunswick-Lüneburg–United States relations

Grand Duchy (band)

List of chancellors of the Duchy of Lancaster

Grand Duchy of Avram

Duchy of Bohemia

Grand Duchy of Oldenburg–United States relations

Grand Duchy of Tuscany–United States relations

Duchy of Ferrara

Duchy of Bielsko

Duchy of Merania

Duchy of Swabia

Grand Duchy of Mecklenburg-Strelitz–United States relations

List of cities in the Grand Duchy of Lithuania

Duchy of Tuscia

List of governors of the Duchy of Milan

Duchy of Guastalla

Duchy of Bavaria

Clerk of the Council of the Duchy of Lancaster

Duchy of Lubusz

Grand Duchy of Mecklenburg-Schwerin–United States relations

Duchy of Wiślica

Duchy of Czersk

Duchy of Płock

Duchy of Cornwall Act 1860

Duchy of Poznań

Duchy of Świecie

Duchy of Trakai

Duchy of Samokalako

Duchy of Gniezno

Duchy of Lubiszewo

Duchy of Kuyavia

Duchy of Gdańsk

Duchy of Magdeburg

Duchy of Kalisz

Coat of arms of the Duchy of Czersk

Duchy of Wieluń

Duchy of Sieradz

Duchy of Philippopolis

The Glory of the Duchy of Carniola

Duchy of La Vallière

Grand Duchy of Baden–United States relations

Pomerania-Stettin

Duchy of Cantabria

Duchy of Salzburg

Duchy of Bouillon

Duchy of Gniewkowo

Duchy of Białogarda

Duchy of Prudnik

Duchy of Sandomierz