He had already defeated Prussia at the Battle of Jena-Auerstedt, where his army captured Carl von Clausewitz.
This leader put down a counterrevolution by commanding his future brother-in-law Joachim Murat, who later put down the Second of May Uprising. This leader defeated Count von Bennigsen at the Battle of Friedland a few months after a less decisive outcome at Eylau, leading to his Treaties of Tilsit with Russia and Prussia. He had already defeated Prussia at the Battle of Jena-Auerstedt, where his army captured Carl von Clausewitz. This leader would later win the Battle of Borodino and enter Russia, but he eventually had to retreat, and his later loss at Leipzig ended the War of the Sixth Coalition. Name this General who was then exiled to Elba and later lost at Waterloo, the Emperor of the French.
This leader put down a counterrevolution by commanding his future brother-in-law Joachim Murat, who later put down the Second of May Uprising.
Napoleon Bonaparte [accept either or both names; accept Napoleon I]