Felice Pasquale Bacciocchi (8 May 1762 – 27 April 1841) was an officer in the French army from a noble, but poor, Corsican family who married Elisa Maria Bonaparte in 1797. He was born at Ajaccio.

After his brother-in-law's conquests, Bacciocchi became Prince of Lucca, but without the associated powers or the sovereign power, which really was exercised by his wife. They separated in 1805 and he moved to Rome, living a simple life there until his death.

http://en.wikipedia.org/wiki/Felice_Pasquale_Baciocchi