State with a grand duke or duchess as head of state
"Grand Duchy" redirects here. For the American rock band, see Grand Duchy (band).
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Coronation of Cosimo I de' Medici as Grand Duke of Tuscany in 1570.
A grand duchy is a country or territory whose official head of state or ruler is a monarch bearing the title of grand duke or grand duchess.
Prior to the early 1800s, the only Grand duchies in Europe were located in what is now Italy: Tuscany (declared in 1569) and Savoy (in 1696).[1] During the 19th century there were as many as 14 grand duchies in Europe at once (a few of which were first created as exclaves of the Napoleonic empire but later re-created, usually with different borders, under another dynasty). Some of these were sovereign and nominally independent (Baden, Hesse and by Rhine, Mecklenburg-Schwerin, Mecklenburg-Strelitz, Oldenburg, Saxe-Weimar-Eisenach and Tuscany), some sovereign but held in personal union with larger realms by a monarch whose grand-dukedom was borne as a subsidiary title (Finland, Luxembourg, Transylvania), some of which were client states of a more powerful realm (Cleves and Berg), and some whose territorial boundaries were nominal and the position purely titular (Frankfurt).
In the 21st century, only Luxembourg remains a grand duchy.
^"Grand duke | European peerage | Britannica". www.britannica.com. Retrieved 2023-07-03.
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