Charles Emmanuel I, Duke of Savoy
Francesco became Duke upon his father's death on 9 February 1612. He died at Mantua on 22 December 1612 without male heirs. He was succeeded by his brother Ferdinand; however, Charles Emmanuel I, Duke of Savoy, the father of Francesco's wife Margaret of Savoy, disputed this, leading to the War of the Montferrat Succession (1613–1617).