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Death of Visconti and Republic Founding

Name: Death of Visconti and Republic Founding
Start: 1447-08-13
Location: Milan

When: 13 August 1447
Where: Milan
Part of: Francesco Sforza's accession in Milan

Filippo Maria Visconti dies in 1447, leading to the establishment of the Golden Ambrosian Republic in Milan.

The unexpected death of Duke Filippo Maria Visconti on 13 August 1447 caused confusion in Milan. University members and popular supporters founded the Golden Ambrosian Republic, naming it after St. Ambrose and establishing a government of elected Capitani e Defensori.

Sources

Golden Ambrosian Republic Wikipedia, revision of 2026-08-06

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.