Viceroyship

A viceroy /ˈvaɪs.rɔɪ/ is a regal official who runs a country, colony, city, province, or sub-national state, in the name of and as the representative of the monarch of the territory. The term derives from the Latin prefix vice-, meaning "in the place of" and the French word roi, meaning "king". A viceroy's territory may be called a viceroyalty, though this term is not always applied. The adjectival form is viceregal, less often viceroyal. The term vicereine is sometimes used to indicate a female viceroy suo jure, although viceroy can serve as a gender-neutral term. Vicereine is more commonly used to indicate a viceroy's wife.

The title was originally used by the Crown of Aragon; where beginning in the 14th century, it referred to the Spanish governors of Sardinia and Corsica. After the unification, at the end of the 15th century, later kings of Spain came to appoint numerous viceroys to rule over various parts of the increasingly vast Spanish Empire in Europe, the Americas, and overseas elsewhere.

In Europe, until the 18th century, the Habsburg crown appointed viceroys of Aragon, Valencia, Catalonia, Navarre, Portugal, Sardinia, Sicily, and Naples. With the ascension of the House of Bourbon to the Spanish throne, the historic Aragonese viceroyalties were replaced by new captaincies general. At the end of War of the Spanish Succession, the Spanish monarchy was shorn of its Italian possessions. These Italian territories, however, continued to have viceroys under their new rulers for some time; Sardinia would have a viceroy until 1848.

...
Wikipedia