What is the name of the only remaining Grand Duchy in the world ?

The only remaining grand duchy in the world is Luxembourg. It is unique in its status as a grand duchy, a term used to describe a territory ruled by a grand duke or grand duchess. Luxembourg has retained this title since its creation in 1815, and it is the last remaining country to be designated as a grand duchy. Despite its relatively small size, Luxembourg has established itself as a prosperous and influential country within the European Union, known for its high standard of living, strong economy, and political stability.