Jerome Napoleon Bonaparte II (1830-1893) was a son of Jerome Napoleon Bonaparte (1805-1870) and Susan May Williams (1812-1881).

He studied at West Point and served in Texas with the Mounted Rifles. In 1854 he was made a colonel in his cousin Napoleon III of France's army.

In 1871 he resigned from the French Army and returned home to the United States where he married Caroline Le Roy Appleton Edgar. They would have two children:

  1. Louise-Eugénie Bonaparte (1873-1923), married in 1896 Count Adam Carl von Moltke-Huitfeld (1864-1944): they have numerous descendants.
  2. Jerome Napoleon Charles Bonaparte (1878-1945), married in 1914 Blanche Pierce Stenbeigh, daughter of Edward and Emily Pierce of Newtonville, Massachusetts and former wife of Harold Stenbeigh of Hewlitt, New York: no children.