Key Facts
- Date
- 8–10 April 1500
- French corps strength (La Trémoille)
- ~500 men plus 10,000 Swiss
- Sforza's fate
- Captured and imprisoned at Château de Loches
- Sforza's death
- Died in captivity, 1508
- Swiss mercenary clause
- Contractual refusal to fight fellow Swiss
Strategic Narrative Overview
On 24 March 1500, La Trémoille united his corps of around 500 men and artillery with 10,000 Swiss at Mortara. By 5 April the combined French army marched on Novara. A French cannonade on 8 April forced Sforza's forces to retreat into the fortress. Crucially, Sforza's Swiss mercenaries refused to fight their counterparts in French service—a contractual obligation—and mutinied on the night of 9 April, negotiating capitulation with France alongside the German Landsknechts.
01 / The Origins
French King Louis XII sought to assert his dynastic claim over the Duchy of Milan, which was held by Ludovico Sforza. After an initial French conquest in 1499, Sforza recaptured Milan with Swiss mercenary support early in 1500. Louis XII responded by dispatching a large army under Louis II de la Trémoille to suppress the Milanese resurgence and permanently extinguish Sforza's rule over the strategically vital duchy of northern Italy.
03 / The Outcome
The capitulation executed on 10 April allowed Swiss and Landsknecht troops to return home after disarming. Lombard and stratioti forces attempting to escape were charged by French troops. Sforza, hidden among the departing Swiss, was identified and surrendered by two companions. He was transported to France and confined at the Château de Loches, where he died in 1508, ending Sforza rule over Milan and consolidating French control of the duchy.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Louis II de la Trémoille.
Side B
1 belligerent
Ludovico Sforza.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.