See Vol. II., Revival of Learning, pp. 122-129.
His real name was Tommaso di Ser Giovanni, of the family of Scheggia. Masaccio means in Tuscan, "Great hulking Tom," just as Masolino, his supposed master and fellow-worker, means "Pretty little Tom." Masolino was Tommaso di Cristofero Fini, born in 1384 in S. Croce. It is now thought that we have but little of his authentic work except the frescoes at Castiglione di Olona, near Milan. Masaccio was born at San Giovanni, in the upper valley of the Arno, in 1402. He died at Borne in 1429.
His family name was Doni. He was born about 1396, and died at the age of about 73. He got his name Uccello from his partiality for painting birds, it is said.