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— CH. 1 · STRATEGIC CONTEXT AND CAMPAIGN —

Battle of Marengo

~8 min read · Ch. 1 of 7
7 sections
  • The year 1800 began with France in a state of political and military crisis. Napoleon Bonaparte had seized power as First Consul just months earlier during the coup d'état of November 1799. The War of the Second Coalition threatened to overwhelm his new government from all sides. Austria held much of northern Italy, while British forces threatened the coast. The French army in Italy was exhausted, suffering from disease and lack of supplies. Some regiments were reduced to only three hundred men after the previous campaign. General Michael von Melas commanded the Austrian forces massed near Alessandria. He planned to push eastward out of Piedmont to relieve pressure on other fronts. Bonaparte needed a decisive victory to secure his position in Paris. He ordered his Army of the Reserve to cross the Alps in mid-May 1800. This daring maneuver caught the Austrians off guard. The French reached Milan by June 2nd and cut the main Austrian supply route along the Po river. However, the Siege of Genoa ended on June 4th when General André Masséna surrendered. This freed thousands of Austrian troops to join Melas against the French. Bonaparte became overconfident and believed the enemy would retreat rather than fight. He spread his own forces too thin across the plain. A local double agent named François Toli deceived him into thinking the Austrians would march north toward Milan. In reality, Melas intended to strike directly at Marengo village.

  • The battle took place on a broad plain east of Alessandria crossed by the Bormida river. Three key locations formed a triangle: Marengo in the west, Castel Ceriolo in the north, and San Giuliano Vecchio in the east. A small stream called the Fontanone ran between Marengo and the Bormida. Napoleon established his headquarters at Torre Garofoli, five kilometers from the fighting. The terrain featured numerous hamlets and farms that served as strategic points for both sides. The Austrian army numbered around thirty thousand men with one hundred guns. They faced twenty-two thousand French soldiers with only fifteen artillery pieces initially. After General Louis Desaix arrived later in the day, six thousand more French troops joined the line. The Austrian units suffered from poor equipment and low morale after months of campaigning. Many regiments used mixed musket patterns and lacked standardized uniforms. The French Army of the Reserve had been rebuilt with fresh supplies and better discipline. Their doctrine emphasized offensive action and bayonet charges over linear firepower. Most of Bonaparte's core force came from the Batavian Republic or former Army of England remnants. The Austrians deployed three corps facing the Bormida river bridgehead. Melas commanded the center while Ott led the left wing near Castel Ceriolo. O'Reilly held the southern sector against Victor's corps. Kellermann's heavy cavalry guarded the left flank while Lannes covered the right. The ground favored Austrian cavalry but hindered their ability to develop a rapid attack through narrow bridges.

  • The morning began around 6 am when Austrian troops advanced across two bridges over the Bormida river. First shots were fired at 8 am but the main assault did not fully develop until 9 am. Colonel Johann Maria Philipp Frimont led an advance guard of twelve hundred men pushing back French outposts. They drove the enemy from Pedrabona farm before heading south toward La Stortiglione. The Austrian center under Melas moved toward Marengo village where Gardanne's infantry halted them temporarily. On the left, Peter Ott waited for the road to clear before attacking Castel Ceriolo. By noon both flanks were exposed as the French held only the line of the Fontanone stream. Hadik's division attacked Victor's defenses in a funnel-shaped area and failed with Hadik himself killed. Kaim's division also failed to break through by 11 am. Morzin's elite grenadiers then assaulted Marengo village itself. A tactical blunder occurred when Nimptsch's brigade of hussars was sent thirty kilometers away to block Suchet's corps. This detachment played no role in the actual fighting. Around 2 pm O'Reilly took Stortiglione while Ott prepared Schellenberg's column to support Gottesheim. The Marengo farm garrison was abandoned at 2:30 pm when Melas captured it with two cavalry squadrons. The French fell back three kilometers attempting to regroup near San Giuliano. At this point the battle seemed won by the Austrians who had driven the French from their best defensive position. Melas handed command to his chief of staff Anton von Zach after being slightly wounded.

  • General Louis Desaix reached Cascina Grossa shortly before 5 pm with six thousand men and nine guns. He reported directly to Bonaparte that his force was not far behind despite the dire situation. When asked about the state of affairs, Desaix replied that the battle was lost but there was still time to win another. Boudet's division moved quickly to occupy positions north of the main vine belt. They surprised the head of Saint-Julien's column as it advanced down the New Road. The 9th Light Infantry Regiment conducted a steady withdrawal for thirty minutes back to Desaix's position. Marmont massed remaining cannon against advancing Austrian infantry while Lattermann's grenadiers renewed the attack. Napoleon ordered a cavalry charge requested by Desaix himself. Kellermann led four hundred heavy cavalrymen charging on the left flank of Lattermann's formation. This disintegrated the enemy line completely. An ammunition limber exploded creating confusion that allowed the French to exploit the gap. Desaix was shot from his horse during this critical moment. Zach and at least two thousand of his men were taken prisoner immediately afterward. Murat and Kellermann routed Liechtenstein Dragoons who crashed into Pilatti's troopers. The exhausted Austrian infantry lost heart and fled toward Alessandria. Gun teams fled while the whole French infantry line advanced westward. A last defense formed around Marengo village as night fell allowing the center to reach safety behind the Bormida river. Ott failed to intervene effectively and found his retreat blocked by French troops advancing northwest.

  • The Austrians suffered heavily over twelve hours of fighting with about eight thousand killed or wounded plus another eight thousand taken prisoner. They lost fifteen colors and forty guns in addition to these personnel losses. French casualties numbered around four thousand seven hundred killed and wounded with nine hundred missing or captured. Despite losing more men overall, the French retained the battlefield and strategic initiative. Desaix's body was found among the slain after the fighting ended. Bonaparte departed for Paris urgently the next morning sending Berthier on a surprise visit to Austrian headquarters. Within twenty-four hours Melas entered negotiations leading to the Convention of Alessandria. This agreement forced the Austrians to evacuate northwestern Italy west of the Ticino river. It also suspended all military operations in Italy for the duration of the conflict. The victory strengthened Bonaparte's position as First Consul significantly. Generals who had been hostile toward him now saw that his luck had not abandoned him. He surpassed previous commanders like Schérer Joubert Championnet and Moreau who had failed to deliver decisive blows. Moreau's later victory at Hohenlinden was minimized by Bonaparte who posed as savior of the Republic. Napoleon could finally begin reforming France according to his own vision without immediate threat from Austria.

  • Marengo became mythologized through an army bulletin and three increasingly glamourised official reports during Bonaparte's reign. Tales were invented about the Guard and the 72nd demibrigade which had been under direct control throughout. General François Kellermann distinguished himself at Marengo but Napoleon sought to counterbalance this with Jean-Baptiste Bessières's charge. The Bulletin de l'armée issued the following day claimed Bessières executed a charge with equal activity and valour penetrating enemy lines. Berthier published Relation de la bataille de Marengo in 1804 suggesting time had to be given to Desaix and Boudet's division. This account claimed the enemy general misinterpreted the maneuver while it was actually executing a movement of conversion. In reality Desaix's arrival was not certain before the retreat began. Participants revealed the precarious condition of the army including Captain Coignet stating they were retreating ready to run at any sign of danger. Marmont described how cavalry charged repeatedly forcing concentration and even further retreats. Thévenet confirmed that parts of the French army were repelled up to the Scrivia river. These accounts attempted to justify the retreat as highly strategic rather than desperate flight. The truth remained hidden behind layers of propaganda designed to secure political power for Bonaparte.

  • Napoleon ensured his victory would not be forgotten by entrusting General Chasseloup with constructing a pyramid on the battlefield site. A ceremony took place on the 5th of May 1805 where Napoleon oversaw a military parade under a tent. Empress Joséphine sat on a throne beside him while Chasseloup presented the founding stone inscribed with words honoring defenders who perished. The field was supposed to become part of a city of Victories whose boulevards converged to the pyramid but the project was abandoned in 1815. Peasants recovered stones from the ruined column erected in 1801 which was later restored in 1922. Several ships of the French Navy bore the name Marengo including Sceptre Jean-Jacques Rousseau Ville de Paris and Marengo itself. In 1802 the Marengo department was named in honor of the battle. Napoleon's mount throughout the campaign also carried the Emperor into future battles at Austerlitz Jena-Auerstedt Wagram and Waterloo. After Napoleon's fall, Marengo County Alabama was settled by Napoleonic refugees establishing the Vine and Olive Colony. Numerous settlements across Canada and the United States adopted the name Marengo. Today a museum exists on the outskirts of Alessandria preserving the memory of the conflict. Re-enactments are organized annually to commemorate the event. A French dish called Chicken Marengo was created to honor Napoleon's victory.

Common questions

When did the Battle of Marengo take place?

The battle took place on the 14th of June 1800. Fighting began around 6 am and continued for twelve hours until nightfall.

Who commanded the Austrian forces at the Battle of Marengo?

General Michael von Melas commanded the Austrian army during the engagement. He led three corps facing the Bormida river bridgehead while Ott and O'Reilly held the wings.

What was the outcome of the Battle of Marengo for Napoleon Bonaparte?

Napoleon secured a decisive victory that strengthened his position as First Consul. The French retained the battlefield and strategic initiative despite suffering heavy casualties.

How many soldiers died in the Battle of Marengo?

Austrian losses included about eight thousand killed or wounded plus another eight thousand taken prisoner. French casualties numbered around four thousand seven hundred killed and wounded with nine hundred missing or captured.

Where is the site of the Battle of Marengo located today?

The battlefield lies east of Alessandria near the Bormida river in Italy. A museum exists on the outskirts of Alessandria preserving the memory of the conflict.