Louis-Nicolas d'Avout, better known as Davout, 1st Prince of Eckmühl, 1st Duke of Auerstaedt, was a French military commander and Marshal of the Empire who served during both the French Revolutionary Wars and the Napoleonic Wars. His talent for war, along with his reputation as a stern disciplinarian, earned him the nickname "The Iron Marshal". He is ranked along with Marshals André Masséna and Jean Lannes as one of Napoleon's finest commanders. His loyalty and obedience to Napoleon were absolute. During his lifetime, Davout's name was commonly spelled Davoust - this spelling appears on the Arc de Triomphe and in much of the correspondence between Napoleon and his generals.

The Battle of Austerlitz, also known as the Battle of the Three Emperors, was one of the most important military engagements of the Napoleonic Wars. The battle occurred near the town of Austerlitz in the Austrian Empire. Around 158,000 troops were involved, of which around 24,000 were killed or wounded. The battle is often cited by military historians as one of Napoleon's tactical masterpieces, in the same league as other historic engagements like Cannae or Gaugamela. The military victory of Napoleon's Grande Armée at Austerlitz brought the War of the Third Coalition to an end, with the Peace of Pressburg signed by the French and Austrians later in the month. These achievements did not establish a lasting peace on the continent. Austerlitz had driven neither Russia nor Britain, whose armies protected Sicily from a French invasion, to settle. Prussian resistance to the growing power of French military invasions in Central Europe led to the War of the Fourth Coalition in 1806.