Duchy of Milan
…and Assisi in Umbria also in 1402. When the last Visconti duke, Filippo Maria, died in 1447 without a male heir, the Milanese declared the so-called Golden Ambrosian Republic, which soon faced revolts and attacks from its neighbors. In 1450 mercenary captain Francesco Sforza, having previously married Filippo Maria Visconti's…