Auguste de Marmont in the context of "Bonapartism"

The Illyrian Provinces were an autonomous province of France during the First French Empire that existed under Napoleonic Rule from 1809 to 1814. The province encompassed large parts of modern Italy and Croatia, extending their reach further east through Slovenia, Montenegro, and Austria. Its capital was Ljubljana (German: Laybach, Laibach). It encompassed six départements, making it a relatively large portion of territorial France at the time. Parts of Croatia were split up into Civil Croatia and Military Croatia, the former served as a residential space for French immigrants and Croatian inhabitants and the latter as a military base to check the Ottoman Empire.

In 1809, Napoleon Bonaparte invaded the region with his Grande Armée after key wins during the War of the Fifth Coalition forced the Austrian Empire to cede parts of its territory. Integrating the land into France was Bonaparte's way of controlling Austria's access to the Mediterranean and Adriatic Sea and expanding his empire east. Bonaparte installed four governors to disseminate French bureaucracy, culture, and language. The most famous and influential governor was Auguste de Marmont, who undertook the bulk of Bonaparte's bidding in the area. Marmont was succeeded by Henri Gatien Bertrand (1811–12), Jean-Andoche Junot (1812–13), and Joseph Fouché (1813–14).

Following defeat at the Battle of Wagram, Archduke Charles retreated north into Bohemia hoping to regroup his battered forces. The French army had also suffered in the battle and did not give immediate pursuit. But two days after the battle, Napoleon ordered his troops north intending to defeat the Austrians once and for all. The French eventually caught up the Austrians at Znaim (now Znojmo, Czech Republic) on 10 July 1809. Realising they were in no position to give battle, the Austrians proposed a ceasefire as Archduke Charles went to begin peace negotiations with Napoleon.

However, Marshal Auguste de Marmont refused to observe the ceasefire and committed his XI Corps of around 10,000 men into battle. With Marmont greatly outnumbered, André Masséna had no choice but to support him. By 11 July, Masséna's corps had joined Marmont's in battle but the Austrians had also reinforced their position around the town of Znaim. After two days of futile fighting, with both sides suffering similar casualties and neither side gaining any advantage, Napoleon finally arrived with news of an armistice and ordered Marmont to end the battle. The Battle of Znaim was the last action between Austria and France in the War of the Fifth Coalition.