No locationEvent

Battle of Bicocca

When
1521–1522
Where
Lombardy; Arcimboldi Villa Bicocca, north of Milan
Episodes
2

On 27 April 1522, a combined French and Venetian force under Odet de Lautrec was decisively defeated by Imperial and Papal troops led by Prospero Colonna at Bicocca. The loss forced Lautrec to withdraw from Lombardy, leaving the Duchy of Milan in Imperial hands.

Episodes

  1. Late 1521 to April 1522 · LombardyRegrouping and Pressure

    Lautrec regrouped after being driven from Milan, attempting to strike at Colonna's lines of communication while suffering desertions.

  2. 27 April 1522 · Arcimboldi Villa Bicocca, north of MilanBattle of Bicocca

    Lautrec attacked Colonna's fortified position at Bicocca on 27 April 1522, resulting in a decisive defeat for the French and Venetian forces.

Background and detail

Strategic Context. Following the joint Imperial and Papal advance against Milan in 1521, Lautrec suffered significant desertions among his Swiss mercenaries. By January 1522, the French had lost key positions like Alessandria and Pavia, while Francesco II Sforza joined Colonna in Milan with German reinforcements.

The Battle. Unpaid Swiss mercenaries demanded immediate combat, forcing Lautrec to attack Colonna's fortified position at the Arcimboldi Villa Bicocca. At dawn on 27 April, Lautrec deployed Black Bands to clear the ground before the Imperial positions, leading to a decisive defeat for the French and Venetian forces.

People involved

Sources

  1. Battle of Bicocca 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.