Prince Murat is a French princely title that traces its origin back to 1804, when Emperor Napoleon granted the rank of prince français to his brother-in-law Joachim Murat, who subsequently reigned as King of Naples from 1808 to 1815. On 5 December 1812, Joachim Murat's second son Lucien was created sovereign Prince of Pontecorvo in succession to Jean-Baptiste Jules Bernadotte, by an Imperial Decree.