Francesco Sforza's accession in Milan (1447–1450)

Following the death of Filippo Maria Visconti in 1447, the Golden Ambrosian Republic was established in Milan. After years of conflict and political instability, a coup in February 1450 paved the way for Francesco Sforza's accession as Duke in March.

Episodes

Background and detail

Founding of the Republic. The death of Duke Filippo Maria Visconti in August 1447 triggered a succession crisis. Members of the University of Pavia, with popular support, established the Golden Ambrosian Republic. The new government was led by elected Capitani e Defensori and named after St. Ambrose, the patron bishop of Milan.

Military Struggles and Political Tension. The Republic faced external threats from France, Venice, and the Swiss, winning battles at Bosco Marengo and Caravaggio. Internally, the government distrusted Francesco Sforza, despite hiring him as Captain-General. Sforza's military successes and the Republic's fear of his power created a volatile political environment leading up to 1450.

Coup and Ducal Accession. In February 1450, a coup engineered by Gaspare da Vimercate and the Stampa family resulted in the murder of Venieri. This political shift allowed Sforza to consolidate power. On 22 March 1450, he was declared Capitano del Popolo and, by right of his wife, Duke of Milan, founding the Sforza dynasty.

People involved

Sources

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