A duchy is a country, territory, fief, or domain ruled by a duke or duchess. The term is used almost exclusively in Europe, where in the present day there is one sovereign duchy (i.e. with the status of a nation state) left, the Grand Duchy of Luxembourg.
Usage
See Special:Whatlinkshere/Etymology:Duchy for a list of articles using this term.
This is an etymology page: a page detailing the origins of terminology used in the series in regards to real world culture and history.