Jean Lannes, 1st Duke of Montebello, Prince of Siewierz, was a French military commander and a Marshal of the Empire who served during both the French Revolutionary and Napoleonic Wars.
- Occupation
- military officer, military personnel
- Position held
- ambassador of France to Portugal
- Citizenship
- France
- Born
- April 10, 1769
- Died
- May 31, 1809