See Appendix, where the documents are quoted in full.
Vasari gives 1478 (1477 in his first edition) and 1511 as the years of his birth and death. Crowe and Cavalcaselle, and Dr. Bode prefer to say "before 1477," a supposition which would make his precocity less phenomenal, and help to explain some chronological difficulties (see p. 66).
Zorzon da Castelfranco. La sua origine, la sua morte e tomba, by Dr. Georg Gronau. Venice, 1894.