Example image of eyePlorer eyePlorer map for 'Grand duke': Arthur Sullivan Operetta The Grand Duke W. S. Gilbert Bassarona iva Germanic languages Title Western Europe Duke Monarch German language Grand prince Prince Grand duchy Grand duke Bermudo II of León Gonzalo Menéndez Portucale Timeline of Portuguese history (First County) Duchy of Burgundy Duchy of Brabant Duchy of Limburg Philip the Good Charles the Bold Jogaila Lithuania Poland Polish–Lithuanian Commonwealth House of Medici Tuscany Holy Roman Empire Pope Pius V Napoleon I of France Congress of Vienna Germany Finland Grand Duke of Finland John III of Sweden Grand Duchy of Finland House of Habsburg Principality Transylvania Tsar Ivan IV of Russia House of Vasa List of Grand Dukes of Russia Middle Ages Comes Count Dux