Battle of Marignano

The Battle of Marignano was fought during the phase of the Italian Wars (14941559) called the War of the League of Cambrai, between France and the Old Swiss Confederacy. It took place on 13-14 September 1515, near the town today called Melegnano, 16 km southeast of Milan. It resulted in a victory for French forces.

Battle of Marignano
Part of the War of the League of Cambrai

Francis I Orders His Troops to Stop Pursuing the Swiss, a Romantic 19th century work by Alexandre-Évariste Fragonard (Galerie des Batailles, Palace of Versailles)
Date13–14 September 1515
Near Melegnano, southeast of Milan, present-day Italy

Decisive Franco-Venetian victory

  • Swiss cantons signed the Treaty of Fribourg establishing the "Perpetual Peace"
 Republic of Venice
 Old Swiss Confederacy Swiss cantons
Duchy of Milan
Commanders and leaders
Francis I
Gian Giacomo Trivulzio
Bartolomeo d'Alviano
Louis de la Trémoille
Charles III, Duke of Bourbon
Marx Röist
Maximilian Sforza[1]
Cardinal Mattheus Schiner

38,700 men[2]

22,200 men

  • 22,000 infantry
  • 200 cavalry
Casualties and losses
3,000-8,000 men 8,000-14,000 men

It pitted the French army, composed of the best armored lancers and artillery in Europe, led by Francis I, newly crowned king of France, against the Old Swiss Confederacy. With Francis were German landsknechts, bitter rivals of the Swiss for fame and renown in war, and his late arriving Venetian allies.


The campaign of Marignano followed years of Swiss successes, during which French fortunes in Northern Italy had suffered greatly. The Swiss had taken control of Milan (for France the gateway to Italy) after their victory at the Battle of Novara (1513), and returned to its ducal throne Massimiliano, son of Ludovico Sforza, the last duke of the House of Sforza to rule independent Milan, as their puppet.

The prologue to the battle was an Alpine passage, in which Francis hauled pieces of artillery (72 huge cannons[3]) over new-made roads over the Col d'Argentière, a previously unknown route. This was, at the time, considered one of the foremost military exploits of the age and the equal of Hannibal's crossing of the Alps. At Villafranca the French, led by Jacques de la Palice,[4] surprised and captured the Papal commander, Prospero Colonna, in a daring cavalry raid deep behind the allied lines (the Chevalier Bayard providing the impetus and expertise). Colonna and his staff aside, the French seized a great deal of booty on the raid, including 600 horses.

The capture of Colonna, along with the startling appearance of the French army on the plains of Piedmont, stunned the allies. The Pope and the Swiss both sought terms with Francis, while the Spanish allies en route from Naples halted to await developments. The main Swiss army retreated to Milan, while a large faction, tired of the war and eager to return home with the booty of years of successful campaigning, urged terms with the French.

Though the parties reached an agreement that gave Milan back to the French, the arrival of fresh and bellicose troops from the Swiss cantons annulled the agreement, as the newly arrived men had no desire to return home empty-handed and refused to abide by the treaty. Discord swept through the Swiss forces till Matthäus Schiner, cardinal of Sion and an arch-enemy of King Francis, inspired the Swiss with a fiery harangue on 13 September, reminding them of what a smaller Swiss army had achieved against as powerful a French army at the Battle of Novara. Schiner pointed out the enormous profits of victory, appealed to national pride, and urged the Swiss to immediate battle. The effect was prodigious. The suddenly enthusiastic Swiss sprang to arms, issuing forth from Milan in disciplined but frenzied columns.


The Swiss encountered Francis's forces at the little burnt-out village of Marignano on a featureless plain. A treaty signed, the French were not expecting battle. Francis was in his tent, trying on a new suit of armor, when scouts reported the coming of the Swiss. The French army quickly sprang into action, forming up in three divisions: the vanguard, posted slightly forward and on the right under Charles III, Duke of Bourbon, the Constable of France; the central battle, commanded by the King, slightly trailing the right; and on the left and even further back, the “rearguard” commanded by the Duke of Alençon. Each division was a combined arms force of infantry, cavalry and artillery.

Massed in front of Francis’ center division was a grand battery of seventy-two field guns guarded by the infamous Black Legion, or Black Band. Also with the king's division was the Chevalier Bayard and his company, the foremost lancers in the French army (and perhaps Europe).

Close to sunset, the Swiss approached the French in three divisions of their own, each a dense mass of pikemen. They had no artillery or cavalry and had learned in past actions that a rapid advance into the enemy would sweep all before them. At Marignano, the battle began with a “forlorn hope” detaching from the Swiss vanguard phalanx, and with lowered pikes charging the grand battery in front of the King’s position in the center. Their intent, justified by experience in other battles, was to quickly overrun the French cannon and then turn them upon their owners.

At first the Swiss attack succeeded in driving back the landsknecht defenders and capturing a few of the guns, the speed of the Swiss advance rendering their fire ineffective. But Bourbon’s cavalry from the French right counter-attacked their flank, driving the forlorn hope back to the shelter of the Swiss vanguard. The pursuing French horse were themselves routed by the oncoming Swiss mainbody.

Smoke and the coming of night obscured the battle; in the moonlight and confusion, the outcome hung in the balance. Furious French cavalry charges, often led by the king himself, with Bayard at his side, succeeded time and again in throwing back temporary Swiss gains. Many of the foremost French commanders were wounded or killed in the desperate night fighting, including the Prince of Tallemont, son of Louis II de la Trémoille, who died with sixty-two wounds on his body. The Black Legion counter-attacked and threw back the Swiss, only to be repulsed in turn. Bayard had to cut his way through the Swiss phalanx to rescue the Duke of Lorraine, stranded in the dark amongst his enemies. In the darkest hours, the fighting stopped, and both armies extracted themselves and reorganized. At dawn the battle commenced again.

In the French center, the grand battery had been reassembled. Opposing them, the Swiss had reformed their largest phalanx. Encouraged by the evening before, the Swiss once again lowered pikes and charged the French guns. This time the grand battery was ready for them. Massed cannon fire tore bloody furrows deep in their ranks, slowing the advance. But the undaunted Swiss continually closed ranks and pushed forward. Again, the defending German landsknechts were driven back; but the massed fire of the guns at point blank prevented the Swiss from pushing farther forward. Still another French cavalry charge, this time led by Bayard, forced the attacking Swiss to give ground.

Baffled by the artillery but as yet undaunted, the Swiss refocused their assault against Alençon’s left-wing division. After making some headway, this attack too was thrown back. In his report later to his mother, King Francis would boast that “thirty brave charges” were hurled by the French gendarmerie against the stubborn Swiss.

Only the mid-morning arrival of allied Venetian forces commanded by the condottiero Bartolomeo d'Alviano turned the tide against the Swiss. Their attacks repulsed everywhere, their ranks in bloody shambles, they grudgingly gave ground and withdrew.

The battle was a decisive victory for Francis. This could be considered the expected outcome, seeing as the Swiss were heavily outnumbered and outgunned. But the Swiss during the preceding decades had almost habitually emerged victorious from such disadvantageous situations, and the French victory by no means came easily, the battle hanging in the balance until the arrival of the Venetian reinforcements.

The immediate causes of the Swiss defeat were their failure to capture the enemy artillery during the early phase of the battle and the arrival of the Venetians. But also contributing to the Swiss defeat were their lack of discipline and their ineffective command structure. Earlier in the same year of 1515, the Swiss diet had granted to each captain the authority to decide whether their company would continue their campaign or retreat. This made it impossible for the Swiss forces to act as a unity. The system of command consisted two captains elected as commanders-in-chief, besides the captains of the individual companies, as well as one representative elected by the men-at-arms of each canton. These commanders would vote on the policy of the Swiss army. In practice, this system broke down as soon as it was put to the test: the captains decided to honour the agreement not to attack, while the representatives of the troops, especially those of Uri, Schwyz and Glarus, decided to attack regardless, motivated by the prospect of rich spoils.


French side

“I have vanquished those whom only Caesar vanquished” was printed on the medal King Francis ordered struck to commemorate the victory.[5] Considering the battle his most cherished triumph, Francis requested that he himself be knighted on the battlefield, in the ancient style, by the hand of none other than the Chevalier Bayard. Marshal Gian Giacomo Trivulzio, veteran of every war for the previous 40 years, praised Marignano as the “battle of giants” and stated that compared to it, all previous battles in his lifetime had been “child’s sport”.

Marignano established the superiority of French cast bronze artillery and gendarme cavalry over the heretofore invincible phalanx tactics of the Swiss infantry. French success at Marignano, however, eventually galvanized opposition in the divided peninsula and turned the European balance of power against Francis I. In the meantime, however, Francis gained the city, and more importantly, the Castello Sforzesco within it, the strategic key to control of Lombardy. There Massimiliano Sforza and his Swiss mercenaries and the cardinal-bishop of Sion retreated, only submitting when French sappers had placed mines under the foundations. The French regained Milan, and Massimiliano went into luxurious exile with a French purse of 30,000 ducats.[6]

Swiss side

The retreating Swiss army retained control of their upper-Lombardy provinces of Bellinzona and adjacent valleys, leaving a rearguard to preside over them.

The battle ended once and for all Swiss aspirations in Milan, and the Swiss Confederacy never again went to war against France or Milan. In fact, the Confederacy never went to war again at all after 1525, and (apart from the conquest of Vaud by the canton of Berne acting on its own in 1536) there never was any Swiss military offensive against an external enemy again. Swiss historiography has tended to attribute this to the "lesson learned" at Marignano, but at least as effective was the division created by the Swiss Reformation in the 1520s, dividing the Confederacy into two factions which would be occupied with internal hostilities throughout the period of the European Wars of Religion, as well as a number of painful defeats of Swiss mercenary regiments in the decade between 1515 and 1525 (at Bicocca, Sesia and Pavia).

Perpetual Peace

After lengthy negotiations, a peace treaty between the Thirteen Cantons and its allies (abbot and city of St. Gallen, Three Leagues, Valais, Mulhouse) on one hand and Francis as both King of France and Duke of Milan on the other was signed in Fribourg on 29 November 1516. In the treaty of Fribourg, known as "Perpetual Peace" (Ewiger Frieden, Paix perpétuelle), the Swiss Confederacy renounced all claims to the protectorate of Milan. In return, France paid 700,000 gold crowns in compensation to the Confederacy. Both parties agreed to abstain from giving any support to enemies of the other party (with the exception of pre-existing treaties) and agreed on an arrangement of arbitration in the case of future disputes. France offered another 300,000 crowns if the Swiss were willing to yield their transmontane territories (except for Bellinzona), but this offer was declined. The treaty furthermore granted trade privileges to the Swiss, both in Milan and in Lyon.[7] Only the Ossola valley was passed back to Milan, while the other transmontane bailiwicks of the Swiss Confederacy remain part of Switzerland to this day, since 1803 as the canton Ticino (while the Three Leagues lost control of the Valtellina in 1797).

The "Perpetual Peace" with France was indeed kept for the remainder of the lifetime of the Kingdom of France, and was broken only during the French Revolutionary Wars, with the French invasion of Switzerland in 1798. It opened a period of close ties between the Swiss Confederacy with France over the next three centuries (while at the same time Switzerland moved away from its association with the Holy Roman Empire). A next step of rapprochemant to France was the service pact (Soldbündnis) with France, concluded in 1521, which made Swiss mercenary regiments a regular part of the French armed forces (see Gardes Suisses). This arrangement also outlasted three centuries, with four Swiss regiments participating in Napoleon's invasion of Russia in 1812, foreign military service of Swiss citizens being finally outlawed in 1848 with the formation of Switzerland as a federal state.


Shortly after the battle, Francis met with Pope Leo X in Bologna to discuss the return of Milan to France – a meeting at which Leonardo da Vinci was present. There, Francis persuaded Leonardo to accompany him back to France, and granted him the Clos Lucé manor.

Also present at the battle was Huldrych Zwingli, who since 1506 had been church patron at Glarus. In Glarus, there was political controversy on which side the young men seeking employment as mercenaries should take service, the side of France or that of the Holy Roman Empire and the Papal States. The aim was to prevent that men of Glarus took service on both sides of the war, which would result in the unhappy constellation of "brothers fighting brothers" on the battlefield, as had been the case at Novara in 1500. Zwingli had supported the Pope before Marignano, and even after the battle, he opposed the peace with France and continued to support the side of the Papal States. Since public opinion in Glarus had shifted towards a clearly pro-French stance after the peace of 1516, Zwingli was forced to abandon his position in Glarus. He took employment at Einsiedeln, and from 1519 in Zürich. Based on his experience in the Italian War, Zwingli became an outspoken opponent of mercenary service, arguing with Erasmus of Rotterdam that "war is sweet only to those who have not experienced it" (dulce bellum inexpertis). He also blamed the warmongery on the part of cardinal Schiner for the disaster at Marignano and began to preach against the "red caps" (rote hüetlin, i.e. the high clergy), the first signs of his radicalization that would culminate in the Swiss Reformation during the decade following Marignano.

Legacy and commemoration

Commemorating the event are a bas-relief of the Battle of Marignano by Pierre Bontemps, which decorates Francis I's tomb at Saint-Denis; a painting by Antoine Caron for Fontainebleau (now at the National Gallery of Canada, Ottawa); and the most famous musical composition of Clément Janequin, the chanson La guerre. The Swiss hero Hans Bär appears in a fresco on the tower of the Basel City Hall.


  1. Sforza was present at the battle, and, being the nominal employer of the Swiss, may be considered their leader. It is extremely doubtful, however, that he exercised any actual command.
  2. Note biografiche di Capitani di Guerra e di Condottieri di Ventura operanti in Italia nel 1330–1550 (in Italian) Archived June 5, 2006, at the Wayback Machine
  3. Alfred S. Bradford (2014). War: Antiquity and Its Legacy Ancients and moderns series. I.B.Tauris. p. 61. ISBN 9781848859357.
  4. Francesco Guicciardini, Storia d'Italia, Lib. XII, cap. 12
  5. McPhee, John (1983-10-31). "La Place de la Concorde Suisse-I". The New Yorker. p. 50. Retrieved 22 July 2013.
  6. Canada's Digital Collections ( Archived December 17, 2004, at the Wayback Machine
  7. André Holenstein: Ewiger Frieden / Paix perpétuelle in German, French and Italian in the online Historical Dictionary of Switzerland, 2010.

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