War of the Fifth Coalition: Austrian invasion of Bavaria and the Danube campaign to Wagram
- When
- 1809–1810
- Where
- Bavaria; Teugen-Hausen; Abensberg; Eckmühl; Aspern-Essling; Raab; Wagram; Papal States
- Episodes
- 8
The War of the Fifth Coalition began in April 1809 when Austrian forces invaded Bavaria, a French client state. Napoleon responded by defeating Austrian corps at Teugen-Hausen, Abensberg, and Eckmühl, though he lost the strategic initiative initially. After occupying Vienna, Napoleon suffered a setback at Aspern-Essling before winning decisively at Wagram. Parallel to these military actions, France annexed the Papal States and exiled Pope Pius VII to Savona.
Episodes
- Invasion of Bavaria
Austrian forces crossed the Inn River into Bavaria, a French client state, initiating hostilities without a declaration of war.
- Battle of Teugen-Hausen
French III Corps under Marshal Davout defeated the Austrian III Armeekorps commanded by Prince Hohenzollern-Hechingen.
- Battle of Abensberg
Napoleon defeated a reinforced Austrian corps led by Archduke Louis, though Austrians captured Regensburg.
- Battle of Eckmühl
French troops under Napoleon and Marshal Davout defeated the Austrians, marking the turning point of the campaign.
- Annexation of Papal States
France occupied and annexed the Papal States in stages beginning in May 1809, and exiled Pope Pius VII to Savona.
- Battle of Aspern-Essling
Austrian troops under Archduke Charles defeated the French, inflicting Napoleon's first major setback.
- Battle of Raab
Franco-Italian forces defeated Habsburg forces, preventing Archduke John from reinforcing the Battle of Wagram.
- Battle of Wagram
Napoleon defeated the Austrians in a costly but decisive victory, consolidating his dominance.
Background and detail
Background. Austria prepared for war in 1808, motivated by British subsidies and the desire to retake lost provinces. Archduke Charles commanded a reformed army, which proved formidable despite incomplete reforms. The conflict began without a formal declaration of war, as Austrian troops crossed the Inn River into Bavaria in April 1809, challenging Napoleon's dominance in Europe.
Papal States. In 1809, during the Napoleonic Wars, Napoleon invaded the Papal States, prompting Pope Pius VII to excommunicate him through the papal bull Quum memoranda. Because of the Papal States' reluctance to align with the Continental System, France occupied and annexed the Papal States, with the annexation occurring in stages (May 1809 and February 1810), and exiled Pius VII to Savona. These measures ran parallel to the military campaign in Germany.
Strategic Context. Napoleon was initially unprepared for the Austrian offensive, losing the strategic initiative for the first time since assuming the Imperial Crown. The Austrians aimed to exploit the political context of 1808-1809, hoping for a general uprising in Germany. However, Prussia remained unwilling to enter the war, and the United Kingdom was not ready to launch its promised land expedition.
People involved
- Napoleon I · Emperor of the French
- Archduke Charles · Commander-in-Chief of the Austrian Army
- Pope Pius VII · Pope
- Archduke John · Commander of the Austrian Army in Italy
- Eugène de Beauharnais · Viceroy of Italy
- Marshal Davout · Commander of the French III Corps
Sources
- Napoleon Wikipedia, revision of 2026-09-27
- Battle of Eckmühl Wikipedia, revision of 2026-08-19
- Battle of Aspern–Essling Wikipedia, revision of 2026-09-20
- Battle of Wagram Wikipedia, revision of 2026-09-20
- Pope Pius VII Wikipedia, revision of 2026-08-20
- Battle of Teugen–Hausen Wikipedia, revision of 2026-08-20
- Archduke Charles, Duke of Teschen Wikipedia, revision of 2026-07-22
- Battle of Raab (1809) Wikipedia, revision of 2026-08-22
- Battle of Abensberg Wikipedia, revision of 2026-08-19
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.