The Prince of Leonforte (Italian: Principe di Leonforte) is a noble title in Italy held by the House of Borghese, and previously by the families Branciforte and Lanza.
Indeed, the town gained its name from the coat of arms of the Branciforte, depicting a strong lion (Italian: Leone Forte).
It was originally created in 1614, during Philip III of Spain's reign as King of Naples for Nicolò Placido Branciforte.
The title remained in the family until 1812, when Stefania Branciforte married Giuseppe Lanza Prince of Trabia.
In 1927, Sofia Lanza Branciforte, who was married to Don Giangiacomo Borghese, later Governor of Rome, was granted the title by Ministerial Decree.