1508–1513: The League of Cambrai and the Wars against Venice

Barely five years separate the height of Louis XII’s Italian glory from its complete collapse. Between 1508 and 1513, France went from being the unchallenged master of northern Italy to a power driven out of the peninsula altogether — and, paradoxically, it all began with a coalition meant to serve its own interests.

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🤝 Formation of the League of Cambrai

Venice, at this time, was a power that unsettled everyone. The Republic controlled a large part of northern Italy, and its commercial and military strength worried the whole of Europe. On 10 December 1508, four signatories — Louis XII, Maximilian I, Ferdinand II of Aragon, and Pope Julius II — agreed on a shared goal: dismantling Venice’s mainland possessions. Each had an eye on a share: France on Cremona, Brescia and Bergamo; the Empire on Verona, Vicenza and Padua; Aragon on the ports of Apulia; the pope on the Romagna.

⚔️ The War against Venice (1509) — The Fourth Italian War

This conflict was part of an Italian policy Louis XII had pursued since the beginning of his reign: as early as 9 February 1499, he had taken up the Neapolitan ambitions of his Angevin predecessors, adding to them his own claim to the duchy of Milan, inherited through the House of Orléans. Having conquered the Milanese, he found himself, by 1509, master of a large part of the peninsula.

A rare visual record survives from this period: a painting by Alvise De Donati, “Mary Magdalene, Martha, Lazarus, and the Prince and Princess of Provence Listening to Christ’s Sermon,” now held at the National Art Museum of Catalonia in Barcelona, originally from the church of San Bartolomeo in Caspano. It shows the king and queen of France, cast in the guise of a prince and princess of Provence, kneeling — the king holding a crown identical to the one struck on coins minted by the Milan mint. It is the only full-length portrait of a king of France painted by an Italian Renaissance artist to have come down to us.

On the ground, the campaign moved quickly. Forty thousand Frenchmen under Louis XII’s personal command faced thirty thousand Venetians: towns fell one after another, often with the support of local populations. On 14 May 1509, at Agnadello, near Cremona, the French army confronted the forces of Bartolomeo d’Alviano. The victory was crushing. Venice lost every one of its mainland possessions in a single stroke, and Venetian Lombardy fell under French control.

🏰 Immediate Consequences

For Venice, it was a disaster: no mainland possessions left, a discredited government, not a single ally left in Europe to rescue it — only the city of Venice itself remained free. For France, by contrast, it was the peak: the greatest military victory of the reign, territory extended into Lombardy, a king at the height of his glory. One problem already lurked, however: holding these conquered territories would prove far harder than taking them, and local resistance was not long in appearing.

🔄 The Reversal of Alliances

This is where everything turned. Pope Julius II, who had himself orchestrated the League of Cambrai, now grew alarmed at seeing France become too powerful — to the point of threatening the very Italian balance he had meant to preserve. His new goal: drive the “barbarians,” as he called the French, out of Italy.

France was, in fact, already suffering setbacks elsewhere on the peninsula: that same year, it was driven out of Naples by Ferdinand of Aragon, known as Ferdinand the Catholic, and would lose the Milanese six years later, in 1513. To speed this process along, Julius II turned his former partners against France one after another and formed, on 5 October 1511, the Catholic League — better known as the Holy League — bringing together Venice, Spain, the Empire, England, and the Swiss cantons. One watchword: expel the French from Italy, and strike on every front at once.

⚔️ The War of the Holy League (1511–1513)

And the fronts did indeed multiply: the Swiss and Venetians moved against Milan, Ferdinand attacked Navarre, Henry VIII landed in France, and Maximilian threatened Burgundy. France found itself squeezed on every side.

The military high point came on 11 April 1512 at Ravenna: thirty thousand Frenchmen commanded by Gaston de Foix faced twenty thousand League soldiers under Ramón de Cardona. The victory went to France — but at what cost. Gaston de Foix, the king’s nephew, died there, and the French army emerged so weakened that the phrase “pyrrhic victory” has rarely fit a battlefield of the reign so well.

Most of the fighting took place in Italy, but French territory itself was not spared. In 1512, Aragon seized Upper Navarre. In 1513, the Swiss laid siege to Dijon and forced the city to pay a ransom for their withdrawal. In August of that same year, the English carried the day at Guinegate — the famous “Battle of the Spurs.” Faced with this pressure on every front, Louis XII chose to dismantle the Holy League piece by piece, through a series of separate treaties, including the highly contested Treaty of Dijon.

🏃 The Retreat from Italy

On the Milanese front, everything played out in a matter of months. In the spring of 1512, the Swiss invaded the Milanese; by summer, Massimiliano Sforza was restored to the ducal throne; by autumn, the French were definitively driven out of northern Italy. A dominance built up over more than a decade collapsed within a single year.

The Treaty of Dijon of 1513 formalised this retreat: France gave up all its claims in Italy, the Sforza were restored at Milan, peace was signed with Venice and the pope, and war reparations were paid. A contested treaty, and for good reason: it sealed the definitive end of France’s Italian ambitions, signed under the direct pressure of military defeat rather than from a position of strength.

🧠 Key Takeaways

• 1508: League of Cambrai against Venice
• 1509: Battle of Agnadello (French victory)
• 1511: Holy League formed against France
• 1512: Battle of Ravenna (a costly victory)
• 1513: loss of the Milanese, retreat from Italy
• Outcome: the peak, then the sudden decline, of French power in Italy
• Consequences: the end of Louis XII’s Italian ambitions

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Next zoom: The defeat at Novara and the definitive loss of the Milanese.