duchy

American  

[duhch-ee] / ˈdʌtʃ i /

noun

plural

duchies

1. the territory ruled by a duke or duchess.

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duchy British  

/ ˈdʌtʃɪ /

noun

1. the territory of a duke or duchess; dukedom

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Etymology

Origin of duchy

1350–1400; Middle English duche < Middle French duche; Anglo-French, Old French duchié < Medieval Latin ducātus; Late Latin, Latin: the rank or functions of a dux; see duke, -ate ³

Explanation

If you are a duke or a duchess, the country or territory you rule is called a duchy. England's Prince Charles is the current Duke of Cornwall and symbolically reigns over a duchy that includes Cornwall and the surrounding area. The term duchy is mainly historical and almost always refers to European territories. Over the years, many dukes and duchesses have ruled over duchies, while others have maintained honorary titles without any real power. Grand duchies were small, sovereign countries ruled by a grand duke or grand duchess. Today, the only remaining grand duchy is Luxembourg, symbolically ruled by Grand Duke Henri, who has limited governmental powers.

Example Sentences

Florence, wracked by dissent and besieged by the Holy Roman Empire, remained in ferment until the Medicis consolidated power in 1530 into what became the Duchy of Florence.

From The Wall Street Journal • Mar. 27, 2026

After gaining permission from the landowner - the Duchy of Cornwall - academics were able to take the whale's head for scientific purposes.

From BBC • Nov. 18, 2025

In 1980, for example, the then-Prince Charles purchased Highgrove House in Gloucestershire through the Duchy of Cornwall.

From BBC • Oct. 27, 2025

The change has been driven by Pat McFadden, who as Chancellor of the Duchy of Lancaster is responsible for civil service reform.

From BBC • Jul. 31, 2025

Heinrich and Katherine returned in 1576 and moved the family to Leonberg, in the Duchy of Württemberg.

From "The Scientists" by John Gribbin