Besides, Sebastian could rule Naples just as well as Alonso.

Sicily belonged to the Austrian Habsburgs, who already ruled Naples.

Initially, Napoleon's brother Joseph Bonaparte ruled Naples.

Murat originally ruled Naples following the same legal and social system used in France, whilst still participating in Napoleon's campaigns.

The Spanish had ruled Naples since the early sixteenth century, and the Colonna were prominent servants of the Spanish crown in Italy.

It could have been one of the members of the House of Bourbon, which ruled Naples during most of the 18th century.

Members of the House of Bourbon also ruled Naples, Sicily, and Parma in the past.

In 1266, Charles of Anjou established the Neapolitan Angevin dynasty, a royal dynasty that ruled Naples until 1435.

In the history, the House ruled Naples and Sicily, parts of Greece, Hungary, Croatia, and Poland.

Charles was driven out of Sicily in 1282, but his successors ruled Naples until 1435.