Chiến tranh
war of succession
The Milanese War of Succession was a war of succession over the Duchy of Milan from the death of duke Filippo Maria Visconti on 13 August 1447 to the Treaty of Lodi on 9 April 1454.
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The Milanese War of Succession was a war of succession over the Duchy of Milan from the death of duke Filippo Maria Visconti on 13 August 1447 to the Treaty of Lodi on 9 April 1454.
Many pretenders claimed to be the rightful successor to Filippo Maria Visconti, who died without a male heir. These included the capable condottiero Francesco Sforza (husband of Visconti's illegitimate daughter), King Alfonso V of Aragon and Naples (to whom Visconti had bequeathed the Duchy in his will) supported by the influential Bracceschi family, Duke Charles of Orléans (son of Visconti's half-sister), Duke Louis of Savoy (brother of Visconti's widow), archdukes Albert IV and Sigismund of Austria (great-grandchildren of Bernabò Visconti), and Emperor Frederick III (who declared the Duchy should revert to the Holy Roman Empire on the extinction of its male line of succession). However, the citizens of Milan and several Lombard towns loyal to Milan proclaimed the Golden Ambrosian Republic (1447–1450) on 14 August 1447, which rejected any hereditary succession. With Sforza as its military leader, the Republic managed to seize and control most of the Duchy of Milan's territory by mid-1448 in battles against rebelling cities such as Pavia, Lodi, and Piacenza, and the invading Republic of Venice (which had already been at war with Milan before Visconti's death). The initial phase of the war may thus be characterised more as a struggle between republics rather than between rival claimants to a throne.
Nevertheless, in October 1448 Sforza defected to Venice in exchange for Venetian support for his claim as duke of Milan. Sforza quickly became a successful conquering warlord, whom the Venetians started to fear. Seeking to claim Milan for himself, the Duke of Savoy interfered in support of the Ambrosian Republic in 1449, but they were defeated by the Sforzan–Venetian forces under Bartolomeo Colleoni at the Battle of Borgomanero (22 April 1449). To prevent Sforza from becoming too powerful, the Venetians abandoned Sforza and allied themselves with the Ambrosians in subsequent battles. But it was too late: Sforza conquered the city of Milan after a siege in early 1450, ended the Ambrosian Republic, and was recognised as duke by the senate with support of the population.
Then Venice instead allied itself with Naples (an Aragonese possession), which also claimed Milan. Sforza rallied Cosimo de' Medici of Florence and Charles VII of France to his side. The latter sent René of Anjou (claimant to the Neapolitan throne, which he lost in 1442) with an expeditionary force to Italy around 1452 on the condition that Sforza would later aid him to regain Naples. The Milanese War of Succession ended with the Treaty of Lodi (9 April 1454), which recognised Sforza as the new duke of Milan (and established a balance of power in Italy, especially through the Italic League formed in August 1454). The Holy Roman Emperor would not do so until 1494, when Emperor Maximilian I formally invested Francesco's son, Ludovico Sforza, as duke of Milan.
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