here - Nobility Associations

After the end of the kingdom, Henry II of Cyprus continued to use the title of king
of Jerusalem. After his death the title was claimed by his direct heirs, the kings of
Cyprus.
The title was also continuously used by the Angevin kings of Naples, whose
founder, Charles of Anjou, had bought a claim to the throne from Mary of Antioch.
Thereafter, this claim to the kingdom of Jerusalem was treated as a tributary of the
crown of Naples, which often changed hands by testament or conquest rather than
direct inheritance. As Naples was a papal fief, the Popes often endorsed the title of
King of Jerusalem as well as of Naples, and the history of these claims is that of the
Neapolitan Kingdom.
The Hohenstaufen Dynasty - Page 133 of 200