Napoléon Bonaparte marries his first wife, Joséphine de Beauharnais.

Napoleon Bonaparte, later known by his regnal name Napoleon I, was a French general and statesman who rose to prominence during the French Revolution and led a series of military campaigns across Europe during the French Revolutionary and Napoleonic Wars from 1796 to 1815. He led the French Republic as First Consul from 1799 to 1804, then ruled the French Empire as Emperor of the French from 1804 to 1814, and briefly again in 1815. He was King of Italy from 1805 to 1814 and Protector of the Confederation of the Rhine from 1806 to 1813.

Joséphine Bonaparte was the first wife of Emperor Napoleon I and as such Empress of the French from 18 May 1804 until their marriage was annulled on 10 January 1810. As Napoleon's consort, she was also Queen of Italy from 26 May 1805 until the 1810 annulment. She is widely known as Joséphine de Beauharnais or Empress Joséphine.

March 9 is the 68th day of the year in the Gregorian calendar; 297 days remain until the end of the year.