He was born in Narni .
He was served a number of Italian city - states : he began with Braccio da Montone , served the Papal States and Florence , as well as the Republic of Venice in 1434 in the battles with the Visconti of Milan .
He was born in Narni , and served a number of Italian city - states : he began with Braccio da Montone , served the Papal States and Florence , as well as the Republic of Venice in 1434 in the battles with the Visconti of Milan .