He was born in 1386 in
Florence. Belonging to the Florentine
Alberti family, he was the son of Giovanni di Cipriano Alberti. In 1440 he was papal legate in Sicily to reconcile Duke
René of Anjou and King
Alfonso V of Aragon. In 1444, he became
Camerlengo of the Sacred College from October 1444. He was one of the Cardinals responsible for the canonization of
Bernardino of Siena. He died on 11 August 1445 in
Grottaferrata. ==See also==