1911 Encyclopædia Britannica, Volume 24… (1911)
“ He served the-Visconti against the Venetians and then the Venetians against the Visconti; he attacked the pope, deprived him of the Romagna, and later defended him; he married in 1441 Bianca, the only daughter of Filippo Maria Visconti, duke of Milan, and received Pontrenioli and Cremona as dowry and the promise of succession to the duchy of Milan. The short-lived Ambrosian republic, which was established by the Milanese on the death of Visconti (1447) , was overthrown by Francesco, who made his triumphal entry as duke of Milan on the 25th of March 1450. ”
