Filippo Maria Visconti
Filippo Maria Visconti (3 September 1392 – 13 August 1447) was the Duke of Milan from 1412 until his death in 1447. In the 1420s, he engaged in conflict with Romagna, Florence, and Venice during the Wars in Lombardy, but was eventually compelled to surrender under pressure from Pope Martin V. He later returned to war, which ended with another peace agreement.